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CVE-2026-13574 (GCVE-0-2026-13574)
Vulnerability from cvelistv5 – Published: 2026-06-29 14:15 – Updated: 2026-07-07 14:32 Disputed| URL | Tags |
|---|---|
| https://vuldb.com/vuln/374582 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/374582/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-13574 | third-party-advisory |
| https://vuldb.com/submit/844468 | third-party-advisory |
| https://github.com/llvm/llvm-project/issues/199191 | issue-tracking |
| https://github.com/user-attachments/files/2814261… | broken-linkexploit |
| https://github.com/llvm/llvm-project/ | product |
| Vendor | Product | Version | |
|---|---|---|---|
| llvm | llvm-project |
Affected:
22.1.0
Affected: 22.1.1 Affected: 22.1.2 Affected: 22.1.3 Affected: 22.1.4 Affected: 22.1.5 Affected: 22.1.6 cpe:2.3:a:llvm:llvm-project:*:*:*:*:*:*:*:* |
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FKIE_CVE-2026-13574
Vulnerability from fkie_nvd - Published: 2026-06-29 15:16 - Updated: 2026-07-07 15:16| Vendor | Product | Version |
|---|
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"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "LOW",
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"subAvailabilityImpact": "NONE",
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"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"version": "4.0",
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},
"source": "cna@vuldb.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
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"options": [
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{
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},
{
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}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-01T14:03:05.481009Z",
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}
}
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},
"published": "2026-06-29T15:16:38.857",
"references": [
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},
{
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{
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},
{
"source": "cna@vuldb.com",
"url": "https://vuldb.com/submit/844468"
},
{
"source": "cna@vuldb.com",
"url": "https://vuldb.com/vuln/374582"
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{
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{
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{
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],
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]
}
GHSA-PF97-7R98-QPJ7
Vulnerability from github – Published: 2026-06-29 15:32 – Updated: 2026-06-29 15:32A vulnerability was determined in llvm llvm-project up to 22.1.6. This impacts the function GCRelocateInst::getBasePtr in the library llvm/lib/IR/IntrinsicInst.cpp of the component Bitcode File Handler. This manipulation causes heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.
{
"affected": [],
"aliases": [
"CVE-2026-13574"
],
"database_specific": {
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"CWE-119"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-29T15:16:38Z",
"severity": "LOW"
},
"details": "A vulnerability was determined in llvm llvm-project up to 22.1.6. This impacts the function GCRelocateInst::getBasePtr in the library llvm/lib/IR/IntrinsicInst.cpp of the component Bitcode File Handler. This manipulation causes heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.",
"id": "GHSA-pf97-7r98-qpj7",
"modified": "2026-06-29T15:32:06Z",
"published": "2026-06-29T15:32:06Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-13574"
},
{
"type": "WEB",
"url": "https://github.com/llvm/llvm-project/issues/199191"
},
{
"type": "WEB",
"url": "https://github.com/llvm/llvm-project"
},
{
"type": "WEB",
"url": "https://github.com/user-attachments/files/28142619/poc.zip"
},
{
"type": "WEB",
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},
{
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},
{
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"url": "https://vuldb.com/vuln/374582"
},
{
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],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
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}
]
}
RHSA-2026:24069
Vulnerability from csaf_redhat - Published: 2026-06-07 05:26 - Updated: 2026-07-13 05:10A flaw was found in llvm. A local attacker could exploit a stack-based buffer overflow vulnerability in the `llvm::StringMap::insert` function. This manipulation could lead to a denial of service, making the affected system or application unavailable.
CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:llvm21-main@aarch64 | — |
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| Unresolved product id: Red Hat Hardened Images:llvm21-main@noarch | — |
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| Unresolved product id: Red Hat Hardened Images:llvm21-main@src | — |
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| Unresolved product id: Red Hat Hardened Images:llvm21-main@x86_64 | — |
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|
A flaw was found in llvm. A local attacker could exploit a heap-based buffer overflow vulnerability in the GCRelocateInst::getBasePtr function within the Bitcode File Handler component. This flaw could lead to a denial of service, making the affected system unavailable.
CWE-805 - Buffer Access with Incorrect Length Value| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:llvm21-main@aarch64 | — |
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| Unresolved product id: Red Hat Hardened Images:llvm21-main@noarch | — |
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| Unresolved product id: Red Hat Hardened Images:llvm21-main@src | — |
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fix
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| Unresolved product id: Red Hat Hardened Images:llvm21-main@x86_64 | — |
Vendor Fix
fix
|
A flaw was found in urllib3, an HTTP client library for Python. When using the low-level API via `ProxyManager.connection_from_url().urlopen()` with `assert_same_host=False`, cross-origin redirects can still forward sensitive headers. This could allow a remote attacker to gain unauthorized access to sensitive information.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:llvm21-main@aarch64 | — |
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| Unresolved product id: Red Hat Hardened Images:llvm21-main@noarch | — |
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| Unresolved product id: Red Hat Hardened Images:llvm21-main@src | — |
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fix
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| Unresolved product id: Red Hat Hardened Images:llvm21-main@x86_64 | — |
Vendor Fix
fix
|
A flaw was found in urllib3, an HTTP client library for Python. This vulnerability allows a remote attacker to cause excessive resource consumption, such as high CPU usage and massive memory allocation, on the client side. This occurs when urllib3 attempts to decompress an entire HTTP response, even if only a partial read was requested, or when draining the connection after a partial decompression. This can lead to a Denial of Service (DoS) condition.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:llvm21-main@aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:llvm21-main@noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:llvm21-main@src | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:llvm21-main@x86_64 | — |
Vendor Fix
fix
|
A flaw was found in the brace-expansion library. This vulnerability allows an attacker to cause a Denial of Service (DoS) by providing a large numeric range for expansion. The library allocates excessive memory to generate all intermediate elements before applying the maximum limit, leading to high memory consumption and potential application crashes. This can impact the availability of systems using the library.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:llvm21-main@aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:llvm21-main@noarch | — |
Vendor Fix
fix
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|
|
| Unresolved product id: Red Hat Hardened Images:llvm21-main@src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:llvm21-main@x86_64 | — |
Vendor Fix
fix
Workaround
|
A flaw was found in PyJWT, a Python library for JSON Web Token (JWT) implementation. A remote attacker can exploit this vulnerability by sending specially crafted JWTs with unknown 'kid' (key ID) values. This can force the `PyJWKClient.get_signing_key()` function to make an unlimited number of unrate-limited HTTP requests to the JSON Web Key Set (JWKS) endpoint. This could potentially lead to a denial of service against the JWKS endpoint, depending on its rate limiting and error handling capabilities.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:llvm21-main@aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:llvm21-main@noarch | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:llvm21-main@src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:llvm21-main@x86_64 | — |
Vendor Fix
fix
Workaround
|
A flaw was found in PyJWT. A remote attacker can exploit this by supplying an arbitrarily large Base64URL payload segment when verifying detached JSON Web Signature (JWS) tokens using the unencoded-payload option. This forces excessive CPU work and memory allocations, leading to a Denial of Service (DoS) against any endpoint verifying such tokens.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:llvm21-main@aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:llvm21-main@noarch | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:llvm21-main@src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:llvm21-main@x86_64 | — |
Vendor Fix
fix
Workaround
|
A flaw was found in PyJWT, a Python library for JSON Web Token (JWT) implementation. When decoding JWTs, the library fails to validate the use of JSON Web Keys (JWK) in the HMAC algorithm while also supporting asymmetric algorithms. This allows a remote attacker to use the issuer's public key as the secret key for the HMAC algorithm, leading to the ability to forge JWTs. This vulnerability can result in authentication bypass or unauthorized access.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:llvm21-main@aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:llvm21-main@noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:llvm21-main@src | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:llvm21-main@x86_64 | — |
Vendor Fix
fix
|
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"text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
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{
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{
"category": "general",
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"title": "CVSS score applicability"
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{
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{
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"title": "urllib3: urllib3: Information disclosure via cross-origin redirects forwarding sensitive headers"
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"discovery_date": "2026-05-13T17:01:01.083841+00:00",
"ids": [
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}
],
"title": "brace-expansion: brace-expansion: Denial of Service due to excessive memory allocation when expanding large numeric ranges"
},
{
"cve": "CVE-2026-48524",
"cwe": {
"id": "CWE-770",
"name": "Allocation of Resources Without Limits or Throttling"
},
"discovery_date": "2026-05-28T16:01:18.648368+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2482733"
}
],
"notes": [
{
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"title": "Vulnerability description"
},
{
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"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Moderate: A flaw in PyJWT, as used in Red Hat products like Ansible Automation Platform and Red Hat Satellite, allows a remote attacker to trigger an unrate-limited volume of HTTP requests to a JSON Web Key Set (JWKS) endpoint. This occurs when processing specially crafted JSON Web Tokens with unknown key IDs, potentially leading to a denial of service against the external JWKS infrastructure.",
"title": "Statement"
},
{
"category": "general",
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"title": "CVSS score applicability"
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"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-48524"
},
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{
"category": "external",
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{
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},
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"category": "external",
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"scores": [
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"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
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"title": "python-pyjwt: PyJWT: Denial of Service via unverified JSON Web Token key IDs"
},
{
"cve": "CVE-2026-48525",
"cwe": {
"id": "CWE-770",
"name": "Allocation of Resources Without Limits or Throttling"
},
"discovery_date": "2026-05-28T16:02:28.870149+00:00",
"ids": [
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"system_name": "Red Hat Bugzilla ID",
"text": "2482752"
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],
"notes": [
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"category": "description",
"text": "A flaw was found in PyJWT. A remote attacker can exploit this by supplying an arbitrarily large Base64URL payload segment when verifying detached JSON Web Signature (JWS) tokens using the unencoded-payload option. This forces excessive CPU work and memory allocations, leading to a Denial of Service (DoS) against any endpoint verifying such tokens.",
"title": "Vulnerability description"
},
{
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"text": "python-pyjwt: PyJWT: Denial of Service via processing of crafted detached JWS tokens",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Moderate: This flaw in PyJWT, a dependency across multiple Red Hat products, allows a remote, unauthenticated attacker to trigger a Denial of Service. By submitting a specially crafted JSON Web Signature (JWS) token with an oversized unencoded payload, an attacker can force excessive CPU and memory consumption on systems verifying these tokens, leading to service disruption.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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],
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"Red Hat Hardened Images:llvm21-main@x86_64"
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"category": "self",
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"summary": "RHBZ#2482752",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482752"
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"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-48525",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-48525"
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"category": "external",
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"url": "https://access.redhat.com/errata/RHSA-2026:24069"
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"Red Hat Hardened Images:llvm21-main@noarch",
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"Red Hat Hardened Images:llvm21-main@x86_64"
]
}
],
"scores": [
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"attackVector": "NETWORK",
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"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
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"products": [
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"Red Hat Hardened Images:llvm21-main@x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "python-pyjwt: PyJWT: Denial of Service via processing of crafted detached JWS tokens"
},
{
"cve": "CVE-2026-48526",
"cwe": {
"id": "CWE-347",
"name": "Improper Verification of Cryptographic Signature"
},
"discovery_date": "2026-05-28T16:01:22.805235+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2482734"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in PyJWT, a Python library for JSON Web Token (JWT) implementation. When decoding JWTs, the library fails to validate the use of JSON Web Keys (JWK) in the HMAC algorithm while also supporting asymmetric algorithms. This allows a remote attacker to use the issuer\u0027s public key as the secret key for the HMAC algorithm, leading to the ability to forge JWTs. This vulnerability can result in authentication bypass or unauthorized access.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "python-pyjwt: PyJWT: Authentication bypass due to forged JSON Web Tokens",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This Important vulnerability in PyJWT allows for authentication bypass and unauthorized access. It occurs when a JWT verifier is misconfigured to accept both symmetric and asymmetric algorithms, and a public JSON Web Key is erroneously used as the HMAC secret. Red Hat products are only affected if they utilize this specific, non-standard verifier configuration.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"Red Hat Hardened Images:llvm21-main@noarch",
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"Red Hat Hardened Images:llvm21-main@x86_64"
]
},
"references": [
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"summary": "Canonical URL",
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},
{
"category": "external",
"summary": "RHBZ#2482734",
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{
"category": "external",
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"url": "https://www.cve.org/CVERecord?id=CVE-2026-48526"
},
{
"category": "external",
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"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48526"
},
{
"category": "external",
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"url": "https://github.com/jpadilla/pyjwt/security/advisories/GHSA-xgmm-8j9v-c9wx"
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],
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"remediations": [
{
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"product_ids": [
"Red Hat Hardened Images:llvm21-main@aarch64",
"Red Hat Hardened Images:llvm21-main@noarch",
"Red Hat Hardened Images:llvm21-main@src",
"Red Hat Hardened Images:llvm21-main@x86_64"
],
"restart_required": {
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},
"url": "https://access.redhat.com/errata/RHSA-2026:24069"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
},
"products": [
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"Red Hat Hardened Images:llvm21-main@noarch",
"Red Hat Hardened Images:llvm21-main@src",
"Red Hat Hardened Images:llvm21-main@x86_64"
]
}
],
"threats": [
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],
"title": "python-pyjwt: PyJWT: Authentication bypass due to forged JSON Web Tokens"
}
]
}
RHSA-2026:7634
Vulnerability from csaf_redhat - Published: 2026-04-11 00:15 - Updated: 2026-07-13 05:10A flaw was found in llvm. A local attacker could exploit a stack-based buffer overflow vulnerability in the `llvm::StringMap::insert` function. This manipulation could lead to a denial of service, making the affected system or application unavailable.
CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:llvm-main@aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:llvm-main@noarch | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:llvm-main@src | — |
Vendor Fix
fix
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|
|
| Unresolved product id: Red Hat Hardened Images:llvm-main@x86_64 | — |
Vendor Fix
fix
Workaround
|
A flaw was found in llvm. A local attacker could exploit a heap-based buffer overflow vulnerability in the GCRelocateInst::getBasePtr function within the Bitcode File Handler component. This flaw could lead to a denial of service, making the affected system unavailable.
CWE-805 - Buffer Access with Incorrect Length Value| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:llvm-main@aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:llvm-main@noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:llvm-main@src | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:llvm-main@x86_64 | — |
Vendor Fix
fix
|
A flaw was found in urllib3, an HTTP client library for Python. When using the low-level API via `ProxyManager.connection_from_url().urlopen()` with `assert_same_host=False`, cross-origin redirects can still forward sensitive headers. This could allow a remote attacker to gain unauthorized access to sensitive information.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:llvm-main@aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:llvm-main@noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:llvm-main@src | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:llvm-main@x86_64 | — |
Vendor Fix
fix
|
A flaw was found in urllib3, an HTTP client library for Python. This vulnerability allows a remote attacker to cause excessive resource consumption, such as high CPU usage and massive memory allocation, on the client side. This occurs when urllib3 attempts to decompress an entire HTTP response, even if only a partial read was requested, or when draining the connection after a partial decompression. This can lead to a Denial of Service (DoS) condition.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:llvm-main@aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:llvm-main@noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:llvm-main@src | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:llvm-main@x86_64 | — |
Vendor Fix
fix
|
A flaw was found in the brace-expansion library. This vulnerability allows an attacker to cause a Denial of Service (DoS) by providing a large numeric range for expansion. The library allocates excessive memory to generate all intermediate elements before applying the maximum limit, leading to high memory consumption and potential application crashes. This can impact the availability of systems using the library.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:llvm-main@aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:llvm-main@noarch | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:llvm-main@src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:llvm-main@x86_64 | — |
Vendor Fix
fix
Workaround
|
A flaw was found in PyJWT, a Python library for handling JSON Web Tokens (JWT). An attacker with control over a registered JSON Web Key (JWK) private key can bypass security checks by signing a token with a forbidden algorithm while claiming to use an allowed one. This allows the attacker to have the token accepted, potentially leading to unauthorized access or manipulation of sensitive information.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:llvm-main@aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:llvm-main@noarch | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:llvm-main@src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:llvm-main@x86_64 | — |
Vendor Fix
fix
Workaround
|
A flaw was found in PyJWT, a Python library for JSON Web Token (JWT) implementation. A remote attacker can exploit this vulnerability by sending specially crafted JWTs with unknown 'kid' (key ID) values. This can force the `PyJWKClient.get_signing_key()` function to make an unlimited number of unrate-limited HTTP requests to the JSON Web Key Set (JWKS) endpoint. This could potentially lead to a denial of service against the JWKS endpoint, depending on its rate limiting and error handling capabilities.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:llvm-main@aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:llvm-main@noarch | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:llvm-main@src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:llvm-main@x86_64 | — |
Vendor Fix
fix
Workaround
|
A flaw was found in PyJWT, a Python library for JSON Web Token (JWT) implementation. When decoding JWTs, the library fails to validate the use of JSON Web Keys (JWK) in the HMAC algorithm while also supporting asymmetric algorithms. This allows a remote attacker to use the issuer's public key as the secret key for the HMAC algorithm, leading to the ability to forge JWTs. This vulnerability can result in authentication bypass or unauthorized access.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:llvm-main@aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:llvm-main@noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:llvm-main@src | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:llvm-main@x86_64 | — |
Vendor Fix
fix
|
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"title": "Details"
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"text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
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"title": "Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update",
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"ids": [
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"text": "A flaw was found in llvm. A local attacker could exploit a stack-based buffer overflow vulnerability in the `llvm::StringMap::insert` function. This manipulation could lead to a denial of service, making the affected system or application unavailable.",
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},
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"ids": [
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],
"notes": [
{
"category": "description",
"text": "A flaw was found in llvm. A local attacker could exploit a heap-based buffer overflow vulnerability in the GCRelocateInst::getBasePtr function within the Bitcode File Handler component. This flaw could lead to a denial of service, making the affected system unavailable.",
"title": "Vulnerability description"
},
{
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},
{
"category": "other",
"text": "This vulnerability has a Low impact, as it requires a local attacker to exploit a heap-based buffer overflow in the LLVM Bitcode File Handler. Successful exploitation could lead to a denial of service by making the affected system unavailable.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
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"threats": [
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"title": "llvm: llvm-project: LLVM: Denial of service via heap-based buffer overflow in Bitcode File Handler"
},
{
"cve": "CVE-2026-44431",
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"id": "CWE-201",
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},
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"ids": [
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],
"notes": [
{
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"text": "A flaw was found in urllib3, an HTTP client library for Python. When using the low-level API via `ProxyManager.connection_from_url().urlopen()` with `assert_same_host=False`, cross-origin redirects can still forward sensitive headers. This could allow a remote attacker to gain unauthorized access to sensitive information.",
"title": "Vulnerability description"
},
{
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},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"Red Hat Hardened Images:llvm-main@noarch",
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"Red Hat Hardened Images:llvm-main@x86_64"
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-44431"
},
{
"category": "external",
"summary": "RHBZ#2477167",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2477167"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-44431",
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},
{
"category": "external",
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"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44431"
},
{
"category": "external",
"summary": "https://github.com/urllib3/urllib3/security/advisories/GHSA-qccp-gfcp-xxvc",
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],
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"Red Hat Hardened Images:llvm-main@noarch",
"Red Hat Hardened Images:llvm-main@src",
"Red Hat Hardened Images:llvm-main@x86_64"
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"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
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"scope": "UNCHANGED",
"userInteraction": "NONE",
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"version": "3.1"
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"threats": [
{
"category": "impact",
"details": "Moderate"
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],
"title": "urllib3: urllib3: Information disclosure via cross-origin redirects forwarding sensitive headers"
},
{
"cve": "CVE-2026-44432",
"cwe": {
"id": "CWE-409",
"name": "Improper Handling of Highly Compressed Data (Data Amplification)"
},
"discovery_date": "2026-05-13T17:01:01.083841+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2477154"
}
],
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{
"category": "description",
"text": "A flaw was found in urllib3, an HTTP client library for Python. This vulnerability allows a remote attacker to cause excessive resource consumption, such as high CPU usage and massive memory allocation, on the client side. This occurs when urllib3 attempts to decompress an entire HTTP response, even if only a partial read was requested, or when draining the connection after a partial decompression. This can lead to a Denial of Service (DoS) condition.",
"title": "Vulnerability description"
},
{
"category": "summary",
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},
{
"category": "general",
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"title": "CVSS score applicability"
}
],
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"fixed": [
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"Red Hat Hardened Images:llvm-main@noarch",
"Red Hat Hardened Images:llvm-main@src",
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-44432"
},
{
"category": "external",
"summary": "RHBZ#2477154",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2477154"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-44432",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-44432"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-44432",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44432"
},
{
"category": "external",
"summary": "https://github.com/urllib3/urllib3/security/advisories/GHSA-mf9v-mfxr-j63j",
"url": "https://github.com/urllib3/urllib3/security/advisories/GHSA-mf9v-mfxr-j63j"
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],
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"restart_required": {
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"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
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"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
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"Red Hat Hardened Images:llvm-main@aarch64",
"Red Hat Hardened Images:llvm-main@noarch",
"Red Hat Hardened Images:llvm-main@src",
"Red Hat Hardened Images:llvm-main@x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
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"title": "urllib3: urllib3: Denial of Service due to excessive HTTP response decompression"
},
{
"cve": "CVE-2026-45149",
"cwe": {
"id": "CWE-770",
"name": "Allocation of Resources Without Limits or Throttling"
},
"discovery_date": "2026-05-29T21:02:00.092772+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2483481"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the brace-expansion library. This vulnerability allows an attacker to cause a Denial of Service (DoS) by providing a large numeric range for expansion. The library allocates excessive memory to generate all intermediate elements before applying the maximum limit, leading to high memory consumption and potential application crashes. This can impact the availability of systems using the library.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "brace-expansion: brace-expansion: Denial of Service due to excessive memory allocation when expanding large numeric ranges",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat products ship brace-expansion versions 1.x and 2.x, which are not affected by this vulnerability. The flaw exists only in versions 5.0.0 through 5.0.5.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
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"Red Hat Hardened Images:llvm-main@noarch",
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},
"references": [
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"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-45149"
},
{
"category": "external",
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2483481"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-45149",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-45149"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-45149",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45149"
},
{
"category": "external",
"summary": "https://github.com/juliangruber/brace-expansion/security/advisories/GHSA-jxxr-4gwj-5jf2",
"url": "https://github.com/juliangruber/brace-expansion/security/advisories/GHSA-jxxr-4gwj-5jf2"
}
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"release_date": "2026-05-29T19:55:07.337000+00:00",
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"category": "vendor_fix",
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"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
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"Red Hat Hardened Images:llvm-main@noarch",
"Red Hat Hardened Images:llvm-main@src",
"Red Hat Hardened Images:llvm-main@x86_64"
]
}
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"category": "impact",
"details": "Moderate"
}
],
"title": "brace-expansion: brace-expansion: Denial of Service due to excessive memory allocation when expanding large numeric ranges"
},
{
"cve": "CVE-2026-48523",
"cwe": {
"id": "CWE-347",
"name": "Improper Verification of Cryptographic Signature"
},
"discovery_date": "2026-05-28T16:01:55.312396+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2482743"
}
],
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"category": "description",
"text": "A flaw was found in PyJWT, a Python library for handling JSON Web Tokens (JWT). An attacker with control over a registered JSON Web Key (JWK) private key can bypass security checks by signing a token with a forbidden algorithm while claiming to use an allowed one. This allows the attacker to have the token accepted, potentially leading to unauthorized access or manipulation of sensitive information.",
"title": "Vulnerability description"
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{
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"text": "python-pyjwt: PyJWT: Verifier-side algorithm bypass leads to unauthorized information access",
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},
{
"category": "other",
"text": "This flaw is rated as Moderate. It impacts applications using PyJWT with PyJWK keys, specifically when jwt.decode() or jwt.decode_complete() are called with a PyJWK key and the PyJWKClient.get_signing_key_from_jwt flow. An attacker must control a registered JWK private key to bypass algorithm allow-lists, limiting the exploitability in environments with strict key management.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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],
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"Red Hat Hardened Images:llvm-main@noarch",
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"url": "https://www.cve.org/CVERecord?id=CVE-2026-48523"
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{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-48523",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48523"
},
{
"category": "external",
"summary": "https://github.com/jpadilla/pyjwt/security/advisories/GHSA-jq35-7prp-9v3f",
"url": "https://github.com/jpadilla/pyjwt/security/advisories/GHSA-jq35-7prp-9v3f"
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"Red Hat Hardened Images:llvm-main@noarch",
"Red Hat Hardened Images:llvm-main@src",
"Red Hat Hardened Images:llvm-main@x86_64"
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"restart_required": {
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"url": "https://access.redhat.com/errata/RHSA-2026:7634"
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"scores": [
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"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
"version": "3.1"
},
"products": [
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"Red Hat Hardened Images:llvm-main@noarch",
"Red Hat Hardened Images:llvm-main@src",
"Red Hat Hardened Images:llvm-main@x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "python-pyjwt: PyJWT: Verifier-side algorithm bypass leads to unauthorized information access"
},
{
"cve": "CVE-2026-48524",
"cwe": {
"id": "CWE-770",
"name": "Allocation of Resources Without Limits or Throttling"
},
"discovery_date": "2026-05-28T16:01:18.648368+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2482733"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in PyJWT, a Python library for JSON Web Token (JWT) implementation. A remote attacker can exploit this vulnerability by sending specially crafted JWTs with unknown \u0027kid\u0027 (key ID) values. This can force the `PyJWKClient.get_signing_key()` function to make an unlimited number of unrate-limited HTTP requests to the JSON Web Key Set (JWKS) endpoint. This could potentially lead to a denial of service against the JWKS endpoint, depending on its rate limiting and error handling capabilities.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "python-pyjwt: PyJWT: Denial of Service via unverified JSON Web Token key IDs",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Moderate: A flaw in PyJWT, as used in Red Hat products like Ansible Automation Platform and Red Hat Satellite, allows a remote attacker to trigger an unrate-limited volume of HTTP requests to a JSON Web Key Set (JWKS) endpoint. This occurs when processing specially crafted JSON Web Tokens with unknown key IDs, potentially leading to a denial of service against the external JWKS infrastructure.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
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"Red Hat Hardened Images:llvm-main@noarch",
"Red Hat Hardened Images:llvm-main@src",
"Red Hat Hardened Images:llvm-main@x86_64"
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"references": [
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"summary": "Canonical URL",
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"category": "external",
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"url": "https://www.cve.org/CVERecord?id=CVE-2026-48524"
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"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-48524",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48524"
},
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"category": "external",
"summary": "https://github.com/jpadilla/pyjwt/security/advisories/GHSA-fhv5-28vv-h8m8",
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"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
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"Red Hat Hardened Images:llvm-main@noarch",
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"scores": [
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"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
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"Red Hat Hardened Images:llvm-main@noarch",
"Red Hat Hardened Images:llvm-main@src",
"Red Hat Hardened Images:llvm-main@x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "python-pyjwt: PyJWT: Denial of Service via unverified JSON Web Token key IDs"
},
{
"cve": "CVE-2026-48526",
"cwe": {
"id": "CWE-347",
"name": "Improper Verification of Cryptographic Signature"
},
"discovery_date": "2026-05-28T16:01:22.805235+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2482734"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in PyJWT, a Python library for JSON Web Token (JWT) implementation. When decoding JWTs, the library fails to validate the use of JSON Web Keys (JWK) in the HMAC algorithm while also supporting asymmetric algorithms. This allows a remote attacker to use the issuer\u0027s public key as the secret key for the HMAC algorithm, leading to the ability to forge JWTs. This vulnerability can result in authentication bypass or unauthorized access.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "python-pyjwt: PyJWT: Authentication bypass due to forged JSON Web Tokens",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This Important vulnerability in PyJWT allows for authentication bypass and unauthorized access. It occurs when a JWT verifier is misconfigured to accept both symmetric and asymmetric algorithms, and a public JSON Web Key is erroneously used as the HMAC secret. Red Hat products are only affected if they utilize this specific, non-standard verifier configuration.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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"product_status": {
"fixed": [
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"Red Hat Hardened Images:llvm-main@noarch",
"Red Hat Hardened Images:llvm-main@src",
"Red Hat Hardened Images:llvm-main@x86_64"
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"references": [
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"summary": "Canonical URL",
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{
"category": "external",
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"category": "external",
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"url": "https://www.cve.org/CVERecord?id=CVE-2026-48526"
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{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-48526",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48526"
},
{
"category": "external",
"summary": "https://github.com/jpadilla/pyjwt/security/advisories/GHSA-xgmm-8j9v-c9wx",
"url": "https://github.com/jpadilla/pyjwt/security/advisories/GHSA-xgmm-8j9v-c9wx"
}
],
"release_date": "2026-05-28T15:09:09.258000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-04-11T00:15:28+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
"product_ids": [
"Red Hat Hardened Images:llvm-main@aarch64",
"Red Hat Hardened Images:llvm-main@noarch",
"Red Hat Hardened Images:llvm-main@src",
"Red Hat Hardened Images:llvm-main@x86_64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:7634"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
},
"products": [
"Red Hat Hardened Images:llvm-main@aarch64",
"Red Hat Hardened Images:llvm-main@noarch",
"Red Hat Hardened Images:llvm-main@src",
"Red Hat Hardened Images:llvm-main@x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "python-pyjwt: PyJWT: Authentication bypass due to forged JSON Web Tokens"
}
]
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.