Vulnerability-Lookup

RHSA-2026:50079

Vulnerability from csaf_redhat - Published: 2026-08-04 13:03 - Updated: 2026-08-05 15:21

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: grafana13.1: * grafana13.1-13.1.1-0.5.1.hum1 (aarch64, x86_64) * grafana13.1-13.1.1-0.5.1.hum1.src (src) Security Fix(es): grafana13.1: * 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-2026-69152

A flaw was found in the brace-expansion library. An attacker can provide specially crafted input to the `expand()` function, which fails to apply length restrictions when creating intermediate arrays. This oversight allows the attacker to exhaust system memory or block the event loop, leading to a Denial of Service (DoS). This vulnerability bypasses a previous mitigation for 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:grafana13-1-main@aarch64	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:grafana13-1-main@src	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:grafana13-1-main@x86_64	—	Vendor Fix fix

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:grafana13-1-main@aarch64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:grafana13-1-main@src	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:grafana13-1-main@x86_64	—	Vendor Fix fix Workaround

Threats

Impact Important

References

22 references

URL	Category
https://access.redhat.com/errata/RHSA-2026:50079	self
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-2026-69152	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

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "namespace": "https://access.redhat.com/security/updates/classification/",
      "text": "Important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "An update for Red Hat Hardened Images RPMs is now available.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "This update includes the following RPMs:\n\ngrafana13.1:\n  * grafana13.1-13.1.1-0.5.1.hum1 (aarch64, x86_64)\n  * grafana13.1-13.1.1-0.5.1.hum1.src (src)\n\nSecurity Fix(es):\n\ngrafana13.1:\n  * CVE-2026-69152\n  * CVE-2026-69153",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "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.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://access.redhat.com/security/team/contact/",
      "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
      "name": "Red Hat Product Security",
      "namespace": "https://www.redhat.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "https://access.redhat.com/errata/RHSA-2026:50079",
        "url": "https://access.redhat.com/errata/RHSA-2026:50079"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/cve/CVE-2026-69152",
        "url": "https://access.redhat.com/security/cve/CVE-2026-69152"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/cve/CVE-2026-69153",
        "url": "https://access.redhat.com/security/cve/CVE-2026-69153"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/",
        "url": "https://access.redhat.com/security/updates/classification/"
      },
      {
        "category": "external",
        "summary": "https://images.redhat.com/",
        "url": "https://images.redhat.com/"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_50079.json"
      }
    ],
    "title": "Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update",
    "tracking": {
      "current_release_date": "2026-08-05T15:21:35+00:00",
      "generator": {
        "date": "2026-08-05T15:21:35+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "5.3.12"
        }
      },
      "id": "RHSA-2026:50079",
      "initial_release_date": "2026-08-04T13:03:38+00:00",
      "revision_history": [
        {
          "date": "2026-08-04T13:03:38+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2026-08-04T13:05:13+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2026-08-05T15:21:35+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Red Hat Hardened Images",
                "product": {
                  "name": "Red Hat Hardened Images",
                  "product_id": "Red Hat Hardened Images",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:redhat:hummingbird:1"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Red Hat Hardened Images"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "grafana13-1-main@aarch64",
                "product": {
                  "name": "grafana13-1-main@aarch64",
                  "product_id": "grafana13-1-main@aarch64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/grafana13.1@13.1.1-0.5.1.hum1?arch=aarch64\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-aarch64-rpms"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "aarch64"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "grafana13-1-main@src",
                "product": {
                  "name": "grafana13-1-main@src",
                  "product_id": "grafana13-1-main@src",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/grafana13.1@13.1.1-0.5.1.hum1?arch=src\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-source-rpms"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "src"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "grafana13-1-main@x86_64",
                "product": {
                  "name": "grafana13-1-main@x86_64",
                  "product_id": "grafana13-1-main@x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/grafana13.1@13.1.1-0.5.1.hum1?arch=x86_64\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-x86_64-rpms"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "grafana13-1-main@aarch64 as a component of Red Hat Hardened Images",
          "product_id": "Red Hat Hardened Images:grafana13-1-main@aarch64"
        },
        "product_reference": "grafana13-1-main@aarch64",
        "relates_to_product_reference": "Red Hat Hardened Images"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "grafana13-1-main@src as a component of Red Hat Hardened Images",
          "product_id": "Red Hat Hardened Images:grafana13-1-main@src"
        },
        "product_reference": "grafana13-1-main@src",
        "relates_to_product_reference": "Red Hat Hardened Images"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "grafana13-1-main@x86_64 as a component of Red Hat Hardened Images",
          "product_id": "Red Hat Hardened Images:grafana13-1-main@x86_64"
        },
        "product_reference": "grafana13-1-main@x86_64",
        "relates_to_product_reference": "Red Hat Hardened Images"
      }
    ]
  },
  "vulnerabilities": [
    {
      "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. An attacker can provide specially crafted input to the `expand()` function, which fails to apply length restrictions when creating intermediate arrays. This oversight allows the attacker to exhaust system memory or block the event loop, leading to a Denial of Service (DoS). This vulnerability bypasses a previous mitigation for CVE-2026-14257.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "brace-expansion: brace-expansion: Denial of Service via unbounded intermediate arrays",
          "title": "Vulnerability summary"
        },
        {
          "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:grafana13-1-main@aarch64",
          "Red Hat Hardened Images:grafana13-1-main@src",
          "Red Hat Hardened Images:grafana13-1-main@x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-69152"
        },
        {
          "category": "external",
          "summary": "RHBZ#2510722",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2510722"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-69152",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-69152"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-69152",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-69152"
        },
        {
          "category": "external",
          "summary": "https://github.com/juliangruber/brace-expansion/commit/139d015104e71433ad52a41d19467c48ecbb2c7d",
          "url": "https://github.com/juliangruber/brace-expansion/commit/139d015104e71433ad52a41d19467c48ecbb2c7d"
        },
        {
          "category": "external",
          "summary": "https://github.com/juliangruber/brace-expansion/commit/1e30c930238d7162802d88a94189182def178dac",
          "url": "https://github.com/juliangruber/brace-expansion/commit/1e30c930238d7162802d88a94189182def178dac"
        },
        {
          "category": "external",
          "summary": "https://github.com/juliangruber/brace-expansion/commit/688a99eeaab02627c2b89ba8ba4821fecfa659cf",
          "url": "https://github.com/juliangruber/brace-expansion/commit/688a99eeaab02627c2b89ba8ba4821fecfa659cf"
        },
        {
          "category": "external",
          "summary": "https://github.com/juliangruber/brace-expansion/commit/cb4b9e47cc2ec777c14b2b4492fb431a56f6a031",
          "url": "https://github.com/juliangruber/brace-expansion/commit/cb4b9e47cc2ec777c14b2b4492fb431a56f6a031"
        },
        {
          "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"
        }
      ],
      "release_date": "2026-08-03T16:33:36.324000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-04T13:03:38+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:grafana13-1-main@aarch64",
            "Red Hat Hardened Images:grafana13-1-main@src",
            "Red Hat Hardened Images:grafana13-1-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:50079"
        }
      ],
      "scores": [
        {
          "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": [
            "Red Hat Hardened Images:grafana13-1-main@aarch64",
            "Red Hat Hardened Images:grafana13-1-main@src",
            "Red Hat Hardened Images:grafana13-1-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "brace-expansion: brace-expansion: Denial of Service via unbounded intermediate arrays"
    },
    {
      "cve": "CVE-2026-69153",
      "cwe": {
        "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",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2510719"
        }
      ],
      "notes": [
        {
          "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"
        },
        {
          "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"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Hardened Images:grafana13-1-main@aarch64",
          "Red Hat Hardened Images:grafana13-1-main@src",
          "Red Hat Hardened Images:grafana13-1-main@x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-69153"
        },
        {
          "category": "external",
          "summary": "RHBZ#2510719",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2510719"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-69153",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-69153"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-69153",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-69153"
        },
        {
          "category": "external",
          "summary": "https://github.com/postcss/postcss/commit/7beca139e70f9075c6b19700fcb00dd8033e5da8",
          "url": "https://github.com/postcss/postcss/commit/7beca139e70f9075c6b19700fcb00dd8033e5da8"
        },
        {
          "category": "external",
          "summary": "https://github.com/postcss/postcss/releases/tag/8.5.19",
          "url": "https://github.com/postcss/postcss/releases/tag/8.5.19"
        },
        {
          "category": "external",
          "summary": "https://github.com/postcss/postcss/security/advisories/GHSA-fxqj-rqcc-2cmp",
          "url": "https://github.com/postcss/postcss/security/advisories/GHSA-fxqj-rqcc-2cmp"
        }
      ],
      "release_date": "2026-08-03T16:56:25.733000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-04T13:03:38+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:grafana13-1-main@aarch64",
            "Red Hat Hardened Images:grafana13-1-main@src",
            "Red Hat Hardened Images:grafana13-1-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:50079"
        },
        {
          "category": "workaround",
          "details": "Pass map: false when invoking PostCSS to disable source map auto-loading. This prevents the path traversal from being triggered, though it removes source map support entirely.",
          "product_ids": [
            "Red Hat Hardened Images:grafana13-1-main@aarch64",
            "Red Hat Hardened Images:grafana13-1-main@src",
            "Red Hat Hardened Images:grafana13-1-main@x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "products": [
            "Red Hat Hardened Images:grafana13-1-main@aarch64",
            "Red Hat Hardened Images:grafana13-1-main@src",
            "Red Hat Hardened Images:grafana13-1-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "postcss: PostCSS: Information disclosure via crafted sourceMappingURL"
    }
  ]
}

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 (v2.0.3)

CWE

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

Assigner

GitHub_M

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

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-69152",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-03T20:11:59.381371Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-03T20:12:20.435Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/juliangruber/brace-expansion/security/advisories/GHSA-rgw5-rvv9-x895"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "brace-expansion",
          "vendor": "juliangruber",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.1.18"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.0.0, \u003c 2.1.4"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.0.0, \u003c 3.0.6"
            },
            {
              "status": "affected",
              "version": "\u003e= 4.0.0, \u003c 5.0.9"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "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"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-770",
              "description": "CWE-770: Allocation of Resources Without Limits or Throttling",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-03T16:33:36.324Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/juliangruber/brace-expansion/security/advisories/GHSA-rgw5-rvv9-x895",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/juliangruber/brace-expansion/security/advisories/GHSA-rgw5-rvv9-x895"
        },
        {
          "name": "https://github.com/juliangruber/brace-expansion/commit/139d015104e71433ad52a41d19467c48ecbb2c7d",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/juliangruber/brace-expansion/commit/139d015104e71433ad52a41d19467c48ecbb2c7d"
        },
        {
          "name": "https://github.com/juliangruber/brace-expansion/commit/1e30c930238d7162802d88a94189182def178dac",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/juliangruber/brace-expansion/commit/1e30c930238d7162802d88a94189182def178dac"
        },
        {
          "name": "https://github.com/juliangruber/brace-expansion/commit/688a99eeaab02627c2b89ba8ba4821fecfa659cf",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/juliangruber/brace-expansion/commit/688a99eeaab02627c2b89ba8ba4821fecfa659cf"
        },
        {
          "name": "https://github.com/juliangruber/brace-expansion/commit/cb4b9e47cc2ec777c14b2b4492fb431a56f6a031",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/juliangruber/brace-expansion/commit/cb4b9e47cc2ec777c14b2b4492fb431a56f6a031"
        }
      ],
      "source": {
        "advisory": "GHSA-rgw5-rvv9-x895",
        "discovery": "UNKNOWN"
      },
      "title": "brace-expansion: DoS via unbounded intermediate arrays, bypassing the CVE-2026-14257 mitigation"
    }
  },
  "cveMetadata": {
    "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",
  "dataVersion": "5.2"
}

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 (v2.0.3)

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

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",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-03T18:28:28.771563Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-03T18:28:59.737Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/postcss/postcss/security/advisories/GHSA-fxqj-rqcc-2cmp"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "postcss",
          "vendor": "postcss",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 8.5.19"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-03T16:56:25.733Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/postcss/postcss/security/advisories/GHSA-fxqj-rqcc-2cmp",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/postcss/postcss/security/advisories/GHSA-fxqj-rqcc-2cmp"
        },
        {
          "name": "https://github.com/postcss/postcss/commit/7beca139e70f9075c6b19700fcb00dd8033e5da8",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/postcss/postcss/commit/7beca139e70f9075c6b19700fcb00dd8033e5da8"
        },
        {
          "name": "https://github.com/postcss/postcss/releases/tag/8.5.19",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/postcss/postcss/releases/tag/8.5.19"
        }
      ],
      "source": {
        "advisory": "GHSA-fxqj-rqcc-2cmp",
        "discovery": "UNKNOWN"
      },
      "title": "PostCSS: incomplete fix of CVE-2026-45623 \u2014 attacker-controlled sourceMappingURL reads arbitrary .map files when `from` is unset"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-69153",
    "datePublished": "2026-08-03T16:56:25.733Z",
    "dateReserved": "2026-08-03T15:47:09.654Z",
    "dateUpdated": "2026-08-03T18:28:59.737Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

RHSA-2026:50079

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

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

Tags

Sightings

Nomenclature