CVE-2026-39364 (GCVE-0-2026-39364)
Vulnerability from cvelistv5 – Published: 2026-04-07 19:12 – Updated: 2026-08-17 12:05Title
Vite has a `server.fs.deny` bypass with queries
Summary
Vite is a frontend tooling framework for JavaScript. From 7.1.0 to before 7.3.2 and 8.0.5, on the Vite dev server, files that should be blocked by server.fs.deny (e.g., .env, *.crt) can be retrieved with HTTP 200 responses when query parameters such as ?raw, ?import&raw, or ?import&url&inline are appended. This vulnerability is fixed in 7.3.2 and 8.0.5.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-07 20:01 UTC
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/vitejs/vite/security/advisorie… | x_refsource_CONFIRM |
| https://access.redhat.com/security/cve/CVE-2026-39364 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2456181 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:24866 | vendor-advisoryx_refsource_REDHAT |
Impacted products
11 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| vitejs | vite |
Affected:
>= 8.0.0, < 8.0.5
Affected: >= 7.1.0, < 7.3.2 |
guessed | |
| vitejs | vite-plus |
Affected:
< 0.1.16
|
guessed | |
| Red Hat | Red Hat Ansible Automation Platform 2.6 |
Unaffected:
1779783248 , < *
(rpm)
cpe:/a:redhat:ansible_automation_platform:2.6::el9 |
||
| Red Hat | Red Hat Advanced Cluster Security 4 |
cpe:/a:redhat:advanced_cluster_security:4
|
||
| Red Hat | Red Hat Ansible Automation Platform 2 |
cpe:/a:redhat:ansible_automation_platform:2
|
||
| Red Hat | Red Hat Build of Keycloak |
cpe:/a:redhat:build_keycloak:
|
||
| Red Hat | Red Hat Build of Podman Desktop |
cpe:/a:redhat:podman_desktop:1
|
||
| Red Hat | Red Hat Build of Podman Desktop - Tech Preview |
cpe:/a:redhat:podman_desktop:0
|
||
| Red Hat | Red Hat JBoss Enterprise Application Platform 8 |
cpe:/a:redhat:jboss_enterprise_application_platform:8
|
||
| Red Hat | Red Hat JBoss Enterprise Application Platform Expansion Pack |
cpe:/a:redhat:jbosseapxp
|
||
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 47057eba-3e4c-438e-a031-8cc7697b9d7c
Exploited: Yes
Timestamps
First Seen: 2026-09-15
Asserted: 2026-09-15
Scope
Notes: Vite has a `server.fs.deny` bypass with queries | Affected: Vitejs / vite, vite-plus | CVSS: 8.2 (HIGH) | EPSS: 0.01996 | Used in malware: unknown | Not yet in CISA KEV: True
Evidence
Type: Public Report
Signal: Successful Exploitation
Confidence: 70%
Source: previdian
Details
| Feed | Previdian (previdian.com) |
|---|---|
| Title | Vite has a `server.fs.deny` bypass with queries |
| Cve Id | CVE-2026-39364 |
| Vendor | Vitejs |
| Ghsa Id | None |
| Product | vite, vite-plus |
| Added Date | 2026-09-15T15:40:00.000Z |
| Cvss Score | 8.2 |
| Epss Score | 0.01996 |
| Previous Ids | |
| Cvss Severity | HIGH |
| Virtual Patch | False |
| Cvss Estimated | False |
| Epss Percentile | 0.7961 |
| Used In Malware | unknown |
| Vulnerability Id | CVE-2026-39364 |
| Ahead Of Cisa Kev | None |
| Not Yet In Cisa Kev | True |
References
Created: 2026-09-16 16:00 UTC
| Updated: 2026-09-16 16:00 UTC
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BREW-VITE-CVE-2026-39364 (GHSA-V2WJ-Q39Q-566R)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:48 – Updated: 2026-09-17 19:24 – Source website
VLAI
Previdian
Summary
Vite: `server.fs.deny` bypassed with queries
Details
Summary
The contents of files that are specified by server.fs.deny can be returned to the browser.
Impact
Only apps that match the following conditions are affected:
- explicitly exposes the Vite dev server to the network (using
--hostorserver.hostconfig option) - the sensitive file exists in the allowed directories specified by
server.fs.allow - the sensitive file is denied with a pattern that matches a file by
server.fs.deny
Details
On the Vite dev server, files that should be blocked by server.fs.deny (e.g., .env, *.crt) can be retrieved with HTTP 200 responses when query parameters such as ?raw, ?import&raw, or ?import&url&inline are appended.
PoC
- Start the dev server:
pnpm exec vite root --host 127.0.0.1 --port 5175 --strictPort - Confirm that
server.fs.denyis enforced (expect 403):curl -i http://127.0.0.1:5175/src/.env | head -n 20 - Confirm that the same files can be retrieved with query parameters (expect 200):
Severity
References
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"purl": "pkg:brew/vite"
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"type": "ECOSYSTEM"
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"source": "matched",
"strategy": "registry",
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]
},
"details": "### Summary\n\nThe contents of files that are specified by [`server.fs.deny`](https://vite.dev/config/server-options#server-fs-deny) can be returned to the browser.\n\n### Impact\n\nOnly apps that match the following conditions are affected:\n\n- explicitly exposes the Vite dev server to the network (using `--host` or [`server.host` config option](https://vitejs.dev/config/server-options.html#server-host))\n- the sensitive file exists in the allowed directories specified by [`server.fs.allow`](https://vite.dev/config/server-options#server-fs-allow)\n- the sensitive file is denied with a pattern that matches a file by [`server.fs.deny`](https://vite.dev/config/server-options#server-fs-deny)\n\n### Details\n\nOn the Vite dev server, files that should be blocked by `server.fs.deny` (e.g., `.env`, `*.crt`) can be retrieved with HTTP 200 responses when query parameters such as `?raw`, `?import\u0026raw`, or `?import\u0026url\u0026inline` are appended.\n\n### PoC\n\n1. Start the dev server: `pnpm exec vite root --host 127.0.0.1 --port 5175 --strictPort`\n2. Confirm that `server.fs.deny` is enforced (expect 403): `curl -i http://127.0.0.1:5175/src/.env | head -n 20`\n \u003cimg width=\"3944\" height=\"1092\" alt=\"image\" src=\"https://github.com/user-attachments/assets/ecb9f2e0-e08f-4ac7-b194-e0f988c4cd4f\" /\u003e\n3. Confirm that the same files can be retrieved with query parameters (expect 200):\n \u003cimg width=\"2014\" height=\"373\" alt=\"image\" src=\"https://github.com/user-attachments/assets/76bc2a6a-44f4-4161-ae47-eab5ae0c04a8\" /\u003e",
"id": "BREW-vite-CVE-2026-39364",
"modified": "2026-09-17T19:24:34Z",
"published": "2026-08-13T17:48:54Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/vitejs/vite/security/advisories/GHSA-v2wj-q39q-566r"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39364"
},
{
"type": "WEB",
"url": "https://github.com/vitejs/vite/pull/22160"
},
{
"type": "WEB",
"url": "https://github.com/vitejs/vite/commit/a9a3df299378d9cbc5f069e3536a369f8188c8ff"
},
{
"type": "PACKAGE",
"url": "https://github.com/vitejs/vite"
},
{
"type": "WEB",
"url": "https://github.com/vitejs/vite/releases/tag/v7.3.2"
},
{
"type": "WEB",
"url": "https://github.com/vitejs/vite/releases/tag/v8.0.5"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Vite: `server.fs.deny` bypassed with queries",
"upstream": [
"GHSA-v2wj-q39q-566r",
"CVE-2026-39364"
]
}
FKIE_CVE-2026-39364
Vulnerability from fkie_nvd - Published: 2026-04-07 20:16 - Updated: 2026-08-04 13:18
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5 (High) - CVSS:3.1/
Summary
Vite is a frontend tooling framework for JavaScript. From 7.1.0 to before 7.3.2 and 8.0.5, on the Vite dev server, files that should be blocked by server.fs.deny (e.g., .env, *.crt) can be retrieved with HTTP 200 responses when query parameters such as ?raw, ?import&raw, or ?import&url&inline are appended. This vulnerability is fixed in 7.3.2 and 8.0.5.
References
| URL | Tags | ||
|---|---|---|---|
| security-advisories@github.com | https://github.com/vitejs/vite/security/advisories/GHSA-v2wj-q39q-566r | Exploit, Vendor Advisory | |
| 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | https://access.redhat.com/errata/RHSA-2026:24866 | ||
| 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | https://access.redhat.com/security/cve/CVE-2026-39364 | ||
| 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | https://bugzilla.redhat.com/show_bug.cgi?id=2456181 | ||
| 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-39364.json |
{
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"status": "affected",
"version": "\u003e= 8.0.0, \u003c 8.0.5"
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{
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}
]
},
{
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"packageName": "automation-controller",
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"packageName": "automation-gateway",
"product": "Red Hat Ansible Automation Platform 2",
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},
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"cpes": [
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],
"defaultStatus": "unaffected",
"packageName": "automation-platform-ui",
"product": "Red Hat Ansible Automation Platform 2",
"vendor": "Red Hat"
},
{
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"cpes": [
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],
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"product": "Red Hat Ansible Automation Platform 2",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:build_keycloak:"
],
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"vendor": "Red Hat"
},
{
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{
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"cpes": [
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},
{
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"cpes": [
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"packageName": "redhat-user-workloads/openshift-local-ext",
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"cpes": [
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"product": "Red Hat JBoss Enterprise Application Platform 8",
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},
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},
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"cpes": [
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],
"defaultStatus": "affected",
"packageName": "redhat-user-workloads/art-images",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
}
],
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:vitejs:vite:*:*:*:*:*:node.js:*:*",
"matchCriteriaId": "8D4169B2-49CC-4174-B1AB-2D61D3441617",
"versionEndIncluding": "7.3.1",
"versionStartIncluding": "7.0.0",
"vulnerable": true
},
{
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"matchCriteriaId": "51F8A931-4520-4696-89C4-7F94228654F5",
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}
],
"negate": false,
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]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Vite is a frontend tooling framework for JavaScript. From 7.1.0 to before 7.3.2 and 8.0.5, on the Vite dev server, files that should be blocked by server.fs.deny (e.g., .env, *.crt) can be retrieved with HTTP 200 responses when query parameters such as ?raw, ?import\u0026raw, or ?import\u0026url\u0026inline are appended. This vulnerability is fixed in 7.3.2 and 8.0.5."
},
{
"lang": "es",
"value": "Vite es un framework de herramientas de frontend para JavaScript. Desde 7.1.0 hasta antes de 7.3.2 y 8.0.5, en el servidor de desarrollo de Vite, los archivos que deber\u00edan ser bloqueados por server.fs.deny (por ejemplo, .env, *.crt) pueden ser recuperados con respuestas HTTP 200 cuando se a\u00f1aden par\u00e1metros de consulta como ?raw, ?import\u0026raw, o ?import\u0026url\u0026inline. Esta vulnerabilidad est\u00e1 corregida en 7.3.2 y 8.0.5."
}
],
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"lastModified": "2026-08-04T13:18:24.733",
"metrics": {
"cvssMetricV31": [
{
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"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
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"scope": "UNCHANGED",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/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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"tags": [
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],
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},
{
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"url": "https://access.redhat.com/security/cve/CVE-2026-39364"
},
{
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2456181"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-39364.json"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-180"
},
{
"lang": "en",
"value": "CWE-284"
}
],
"source": "security-advisories@github.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-472"
}
],
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"type": "Secondary"
}
]
}
GHSA-V2WJ-Q39Q-566R
Vulnerability from github – Published: 2026-04-06 18:03 – Updated: 2026-04-07 22:16
VLAI
Summary
Vite: `server.fs.deny` bypassed with queries
Details
Summary
The contents of files that are specified by server.fs.deny can be returned to the browser.
Impact
Only apps that match the following conditions are affected:
- explicitly exposes the Vite dev server to the network (using
--hostorserver.hostconfig option) - the sensitive file exists in the allowed directories specified by
server.fs.allow - the sensitive file is denied with a pattern that matches a file by
server.fs.deny
Details
On the Vite dev server, files that should be blocked by server.fs.deny (e.g., .env, *.crt) can be retrieved with HTTP 200 responses when query parameters such as ?raw, ?import&raw, or ?import&url&inline are appended.
PoC
- Start the dev server:
pnpm exec vite root --host 127.0.0.1 --port 5175 --strictPort - Confirm that
server.fs.denyis enforced (expect 403):curl -i http://127.0.0.1:5175/src/.env | head -n 20 - Confirm that the same files can be retrieved with query parameters (expect 200):
Severity
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 8.0.4"
},
"package": {
"ecosystem": "npm",
"name": "vite"
},
"ranges": [
{
"events": [
{
"introduced": "8.0.0"
},
{
"fixed": "8.0.5"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 7.3.1"
},
"package": {
"ecosystem": "npm",
"name": "vite"
},
"ranges": [
{
"events": [
{
"introduced": "7.1.0"
},
{
"fixed": "7.3.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-39364"
],
"database_specific": {
"cwe_ids": [
"CWE-180",
"CWE-284"
],
"github_reviewed": true,
"github_reviewed_at": "2026-04-06T18:03:32Z",
"nvd_published_at": "2026-04-07T20:16:30Z",
"severity": "HIGH"
},
"details": "### Summary\n\nThe contents of files that are specified by [`server.fs.deny`](https://vite.dev/config/server-options#server-fs-deny) can be returned to the browser.\n\n### Impact\n\nOnly apps that match the following conditions are affected:\n\n- explicitly exposes the Vite dev server to the network (using `--host` or [`server.host` config option](https://vitejs.dev/config/server-options.html#server-host))\n- the sensitive file exists in the allowed directories specified by [`server.fs.allow`](https://vite.dev/config/server-options#server-fs-allow)\n- the sensitive file is denied with a pattern that matches a file by [`server.fs.deny`](https://vite.dev/config/server-options#server-fs-deny)\n\n### Details\n\nOn the Vite dev server, files that should be blocked by `server.fs.deny` (e.g., `.env`, `*.crt`) can be retrieved with HTTP 200 responses when query parameters such as `?raw`, `?import\u0026raw`, or `?import\u0026url\u0026inline` are appended.\n\n### PoC\n\n1. Start the dev server: `pnpm exec vite root --host 127.0.0.1 --port 5175 --strictPort`\n2. Confirm that `server.fs.deny` is enforced (expect 403): `curl -i http://127.0.0.1:5175/src/.env | head -n 20`\n \u003cimg width=\"3944\" height=\"1092\" alt=\"image\" src=\"https://github.com/user-attachments/assets/ecb9f2e0-e08f-4ac7-b194-e0f988c4cd4f\" /\u003e\n3. Confirm that the same files can be retrieved with query parameters (expect 200):\n \u003cimg width=\"2014\" height=\"373\" alt=\"image\" src=\"https://github.com/user-attachments/assets/76bc2a6a-44f4-4161-ae47-eab5ae0c04a8\" /\u003e",
"id": "GHSA-v2wj-q39q-566r",
"modified": "2026-04-07T22:16:17Z",
"published": "2026-04-06T18:03:32Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/vitejs/vite/security/advisories/GHSA-v2wj-q39q-566r"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39364"
},
{
"type": "WEB",
"url": "https://github.com/vitejs/vite/pull/22160"
},
{
"type": "WEB",
"url": "https://github.com/vitejs/vite/commit/a9a3df299378d9cbc5f069e3536a369f8188c8ff"
},
{
"type": "PACKAGE",
"url": "https://github.com/vitejs/vite"
},
{
"type": "WEB",
"url": "https://github.com/vitejs/vite/releases/tag/v7.3.2"
},
{
"type": "WEB",
"url": "https://github.com/vitejs/vite/releases/tag/v8.0.5"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Vite: `server.fs.deny` bypassed with queries"
}
RHSA-2026:24866
Vulnerability from csaf_redhat - Published: 2026-06-09 17:09 - Updated: 2026-09-17 06:21Summary
Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.6 Container Release Update
Severity
Critical
Scope
14 vulnerabilities in this advisory, including CVE-2026-39364.
CVE-2026-39364
A flaw was found in Vite, a frontend tooling framework for JavaScript. On the Vite development server, a remote attacker could exploit this vulnerability by appending specific query parameters, such as ?raw, to requests. This allows the attacker to bypass security restrictions and retrieve sensitive files, including environment variables (.env) and certificate files (*.crt), which should otherwise be blocked. This information disclosure could lead to further compromise of the system.
7.5 (High)
Fixed: 4 products
Known not affected: 110 products
https://access.redhat.com/errata/RHSA-2026:24866
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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