Vulnerability-Lookup

RHSA-2026:50290

Vulnerability from csaf_redhat - Published: 2026-08-04 16:49 - Updated: 2026-08-25 09:38

Summary

Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

Severity

Important

Notes

Topic: An update for Red Hat Hardened Images RPMs is now available.

Details: This update includes the following RPMs: grafana12.4: * grafana12.4-12.4.6-0.4.hum1 (aarch64, x86_64) * grafana12.4-12.4.6-0.4.hum1.src (src) Security Fix(es): grafana12.4: * CVE-2026-14257 * CVE-2026-69152 * CVE-2026-69153

Terms of Use: 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.

CVE-2026-14257

A flaw was found in brace-expansion. A remote attacker can exploit this vulnerability by providing specially crafted input to the expand() function, which can lead to excessive memory consumption. This can cause a denial of service (DoS) by crashing the application due to an out-of-memory error.

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-770 - Allocation of Resources Without Limits or Throttling

Affected products

Fixed 3 products

Product	Version	Remediation
Unresolved product id: Red Hat Hardened Images:grafana12-4-main@aarch64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:grafana12-4-main@src	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:grafana12-4-main@x86_64	—	Vendor Fix fix Workaround

Threats

Impact Important

CVE-2026-69152

A flaw was found in the brace-expansion library. The `expand()` function does not apply `maxLength` when constructing comma-alternative intermediate arrays or padded sequences, allowing attacker-controlled input to exhaust memory or block the event loop, resulting in a denial of service. This issue is due to an incomplete mitigation of CVE-2026-14257.

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-770 - Allocation of Resources Without Limits or Throttling

Affected products

Fixed 3 products

Product	Version	Remediation
Unresolved product id: Red Hat Hardened Images:grafana12-4-main@aarch64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:grafana12-4-main@src	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:grafana12-4-main@x86_64	—	Vendor Fix fix Workaround

Threats

Impact Important

CVE-2026-69153

A flaw was found in PostCSS. A remote attacker can exploit this vulnerability by providing a specially crafted sourceMappingURL when a specific configuration (the 'from' parameter) is not set. This can cause the application to read and expose unintended source-map files, potentially revealing sensitive information about the application's source code.

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Affected products

Fixed 3 products

Product	Version	Remediation
Unresolved product id: Red Hat Hardened Images:grafana12-4-main@aarch64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:grafana12-4-main@src	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:grafana12-4-main@x86_64	—	Vendor Fix fix Workaround

Threats

Impact Important

References

30 references

URL	Category
https://access.redhat.com/errata/RHSA-2026:50290	self
https://access.redhat.com/security/cve/CVE-2026-14257	external
https://access.redhat.com/security/cve/CVE-2026-69152	external
https://access.redhat.com/security/cve/CVE-2026-69153	external
https://access.redhat.com/security/updates/classi…	external
https://images.redhat.com/	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2026-14257	self
https://bugzilla.redhat.com/show_bug.cgi?id=2506433	external
https://www.cve.org/CVERecord?id=CVE-2026-14257	external
https://nvd.nist.gov/vuln/detail/CVE-2026-14257	external
https://github.com/juliangruber/brace-expansion	external
https://github.com/juliangruber/brace-expansion/c…	external
https://www.npmjs.com/package/brace-expansion	external
https://access.redhat.com/security/cve/CVE-2026-69152	self
https://bugzilla.redhat.com/show_bug.cgi?id=2510722	external
https://www.cve.org/CVERecord?id=CVE-2026-69152	external
https://nvd.nist.gov/vuln/detail/CVE-2026-69152	external
https://github.com/juliangruber/brace-expansion/c…	external
https://github.com/juliangruber/brace-expansion/c…	external
https://github.com/juliangruber/brace-expansion/c…	external
https://github.com/juliangruber/brace-expansion/c…	external
https://github.com/juliangruber/brace-expansion/s…	external
https://access.redhat.com/security/cve/CVE-2026-69153	self
https://bugzilla.redhat.com/show_bug.cgi?id=2510719	external
https://www.cve.org/CVERecord?id=CVE-2026-69153	external
https://nvd.nist.gov/vuln/detail/CVE-2026-69153	external
https://github.com/postcss/postcss/commit/7beca13…	external
https://github.com/postcss/postcss/releases/tag/8.5.19	external
https://github.com/postcss/postcss/security/advis…	external

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      },
      "discovery_date": "2026-07-23T14:01:26.376839+00:00",
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          "text": "A flaw was found in brace-expansion. A remote attacker can exploit this vulnerability by providing specially crafted input to the expand() function, which can lead to excessive memory consumption. This can cause a denial of service (DoS) by crashing the application due to an out-of-memory error.",
          "title": "Vulnerability description"
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          "text": "brace-expansion: Brace-expansion: Denial of Service via memory exhaustion in expand() function",
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          "text": "A flaw was found in the brace-expansion npm package. The expand() function limits the number of generated results but does not bound the length of each result string. By chaining multiple brace groups, an attacker can keep the result count under the limit while making each result progressively longer, causing total memory consumption to grow until the Node.js process crashes with an uncatchable out-of-memory error. This affects any application that passes attacker-influenced strings to brace-expansion directly or transitively via minimatch or glob brace patterns.\n\nNote: In the majority of Red Hat products, brace-expansion is brought in as a transitive dependency of minimatch or glob and is not used at runtime. It is typically only invoked during build or development tooling and is not directly exposed to untrusted network input, reducing the practical exploitability of this flaw.\n\n```\n$ npm ls --omit=dev brace-expansion\nnpm@10.9.8 /usr/lib/node_modules/npm\n`-- minimatch@9.0.9\n  `-- brace-expansion@2.0.2\n```",
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          "url": "https://access.redhat.com/errata/RHSA-2026:50290"
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          "details": "Do not pass untrusted or user-controlled input to brace-expansion\u0027s expand() function or to libraries that use it for glob pattern matching (such as minimatch or glob). Validate and sanitize any brace patterns before expansion.\n\nWhere possible, upgrade to brace-expansion 1.1.17, 2.1.3, 3.0.3, or 5.0.8 which add a maxLength option that bounds accumulated output.\n\nAs an additional defense-in-depth measure, enforce memory limits on Node.js processes using operating system resource controls such as cgroups or Kubernetes resource limits (spec.containers[].resources.limits.memory) to prevent a single process from exhausting system memory and causing a wider outage.",
          "product_ids": [
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          ]
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          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "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"
          },
          "products": [
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            "Red Hat Hardened Images:grafana12-4-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "brace-expansion: Brace-expansion: Denial of Service via memory exhaustion in expand() function"
    },
    {
      "cve": "CVE-2026-69152",
      "cwe": {
        "id": "CWE-770",
        "name": "Allocation of Resources Without Limits or Throttling"
      },
      "discovery_date": "2026-08-03T18:01:13.566423+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2510722"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in the brace-expansion library. The `expand()` function does not apply `maxLength` when constructing comma-alternative intermediate arrays or padded sequences, allowing attacker-controlled input to exhaust memory or block the event loop, resulting in a denial of service. This issue is due to an incomplete mitigation of CVE-2026-14257.",
          "title": "Vulnerability description"
        },
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          "category": "summary",
          "text": "brace-expansion: DoS via unbounded intermediate arrays, bypassing the CVE-2026-14257 mitigation",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Any applications that pass user-controlled input to the `expand()` function are vulnerable to this issue. This flaw can result in an excessive consumption of memory that eventually terminates the process or blocks the event loop, both causing a denial of service. As this vulnerability allows a remote attacker to cause a denial of service, it has been rated with an important severity.",
          "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": [
          "Red Hat Hardened Images:grafana12-4-main@aarch64",
          "Red Hat Hardened Images:grafana12-4-main@src",
          "Red Hat Hardened Images:grafana12-4-main@x86_64"
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          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-69152"
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          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-69152"
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          "url": "https://github.com/juliangruber/brace-expansion/commit/cb4b9e47cc2ec777c14b2b4492fb431a56f6a031"
        },
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          "category": "external",
          "summary": "https://github.com/juliangruber/brace-expansion/security/advisories/GHSA-rgw5-rvv9-x895",
          "url": "https://github.com/juliangruber/brace-expansion/security/advisories/GHSA-rgw5-rvv9-x895"
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          "category": "vendor_fix",
          "date": "2026-08-04T16:49:56+00:00",
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            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:50290"
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          "category": "workaround",
          "details": "To mitigate this vulnerability, do not pass untrusted input to the expand() function.",
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            "attackVector": "NETWORK",
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            "baseScore": 7.5,
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            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
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      "cve": "CVE-2026-69153",
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        "id": "CWE-22",
        "name": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)"
      },
      "discovery_date": "2026-08-03T18:01:01.506065+00:00",
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          "system_name": "Red Hat Bugzilla ID",
          "text": "2510719"
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          "category": "description",
          "text": "A flaw was found in PostCSS. A remote attacker can exploit this vulnerability by providing a specially crafted sourceMappingURL when a specific configuration (the \u0027from\u0027 parameter) is not set. This can cause the application to read and expose unintended source-map files, potentially revealing sensitive information about the application\u0027s source code.",
          "title": "Vulnerability description"
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          "category": "summary",
          "text": "postcss: PostCSS: Information disclosure via crafted sourceMappingURL",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Red Hat rates this flaw as Moderate because the information disclosed is limited to files with a .map extension. Source map files may contain source code paths and content, but the attacker cannot read arbitrary files on the system. Exploitation requires the application to process attacker-controlled CSS through PostCSS on the server side.",
          "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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          "category": "external",
          "summary": "https://github.com/postcss/postcss/releases/tag/8.5.19",
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          "category": "vendor_fix",
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            "category": "none"
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          "url": "https://access.redhat.com/errata/RHSA-2026:50290"
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            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
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        {
          "category": "impact",
          "details": "Important"
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      ],
      "title": "postcss: PostCSS: Information disclosure via crafted sourceMappingURL"
    }
  ]
}

CVE-2026-14257 (GCVE-0-2026-14257)

Vulnerability from cvelistv5 – Published: 2026-07-23 12:54 – Updated: 2026-07-23 14:44

Title

brace-expansion DoS via unbounded expansion length causing an out-of-memory process crash

Summary

brace-expansion through 5.0.7 is vulnerable to denial of service via memory exhaustion. The expand() function limits the number of results with a max option (default 100,000) but does not bound the length of each result string. By chaining multiple brace groups, an attacker keeps the result count under the limit while making each result progressively longer, so total memory scales with both count and string length until the process hits a fatal, uncatchable out-of-memory error. About 7.5 KB of input ('{a,b}'.repeat(1500)) crashes a default Node.js process. Any application that passes attacker-influenced strings to brace-expansion.expand() - directly or transitively via minimatch / glob brace patterns - can be crashed by a small request. Fixed in 5.0.8 by adding a maxLength option (default 4,000,000) that bounds accumulated output and intermediate arrays.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-23 14:44 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

seal mitre root

References

3 references

URL	Tags
https://www.npmjs.com/package/brace-expansion
https://github.com/juliangruber/brace-expansion
https://github.com/juliangruber/brace-expansion/c…

Impacted products

1 product

Vendor	Product	Version
juliangruber	brace-expansion	Affected: 0 , ≤ 5.0.7 (semver)

Credits

bnbdr

Show details on NVD website

JSON

To clipboard

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CVE-2026-69152 (GCVE-0-2026-69152)

Vulnerability from cvelistv5 – Published: 2026-08-03 16:33 – Updated: 2026-08-03 20:12

Title

brace-expansion: DoS via unbounded intermediate arrays, bypassing the CVE-2026-14257 mitigation

Summary

The brace-expansion library generates arbitrary strings containing a common prefix and suffix. Prior to 1.1.18, 2.1.4, 3.0.6, and 5.0.9, expand() does not apply maxLength while constructing comma-alternative intermediate arrays or padded sequences, allowing attacker-controlled input to exhaust memory or block the event loop. The fix for CVE-2026-14257 is bypassed by the vulnerability. This issue is fixed in versions 1.1.18, 2.1.4, 3.0.6, and 5.0.9.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-03 20:11 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

GitHub_M mitre root

References

5 references

URL	Tags
https://github.com/juliangruber/brace-expansion/s…	x_refsource_CONFIRM
https://github.com/juliangruber/brace-expansion/c…	x_refsource_MISC
https://github.com/juliangruber/brace-expansion/c…	x_refsource_MISC
https://github.com/juliangruber/brace-expansion/c…	x_refsource_MISC
https://github.com/juliangruber/brace-expansion/c…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
juliangruber	brace-expansion	Affected: < 1.1.18 Affected: >= 2.0.0, < 2.1.4 Affected: >= 3.0.0, < 3.0.6 Affected: >= 4.0.0, < 5.0.9

Show details on NVD website

JSON

To clipboard

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    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-69152",
    "datePublished": "2026-08-03T16:33:36.324Z",
    "dateReserved": "2026-08-03T15:47:09.654Z",
    "dateUpdated": "2026-08-03T20:12:20.435Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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CVE-2026-69153 (GCVE-0-2026-69153)

Vulnerability from cvelistv5 – Published: 2026-08-03 16:56 – Updated: 2026-08-03 18:28

Title

PostCSS: incomplete fix of CVE-2026-45623 — attacker-controlled sourceMappingURL reads arbitrary .map files when `from` is unset

Summary

PostCSS takes a CSS file and provides an API to analyze and modify its rules by transforming the rules into an Abstract Syntax Tree. Prior to 8.5.19, if from is unset, an attacker can cause PreviousMap.loadFile() to read an unintended source-map file by supplying an absolute or directory-traversal sourceMappingURL. The resulting map’s sources and sourcesContent may then be exposed to the application. This issue is fixed in version 8.5.19.

Severity

6.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-03 18:28 UTC

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/postcss/postcss/security/advis…	x_refsource_CONFIRM
https://github.com/postcss/postcss/commit/7beca13…	x_refsource_MISC
https://github.com/postcss/postcss/releases/tag/8.5.19	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
postcss	postcss	Affected: < 8.5.19

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-69153",
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                  },
                  {
                    "Technical Impact": "partial"
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                "role": "CISA Coordinator",
                "timestamp": "2026-08-03T18:28:28.771563Z",
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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    ],
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          "vendor": "postcss",
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          "value": "PostCSS takes a CSS file and provides an API to analyze and modify its rules by transforming the rules into an Abstract Syntax Tree. Prior to 8.5.19, if from is unset, an attacker can cause PreviousMap.loadFile() to read an unintended source-map file by supplying an absolute or directory-traversal sourceMappingURL. The resulting map\u2019s sources and sourcesContent may then be exposed to the application. This issue is fixed in version 8.5.19."
        }
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            "attackVector": "NETWORK",
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            "baseSeverity": "MEDIUM",
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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.

Detection rules are retrieved from Rulezet.

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.

Action not permitted

RHSA-2026:50290

CVE-2026-14257 (GCVE-0-2026-14257)

CVE-2026-69152 (GCVE-0-2026-69152)

CVE-2026-69153 (GCVE-0-2026-69153)

Tags

Sightings

Nomenclature