Vulnerability-Lookup

GHSA-HMQG-CXWW-WQHQ

Vulnerability from github – Published: 2026-08-06 21:31 – Updated: 2026-08-06 21:31

Summary

PHP_CodeSniffer gitblame report command injection via crafted filename

Details

Impact

PHP_CodeSniffer versions before v3.13.6 and v4.0.2 contain a command injection vulnerability in the code creating the Gitblame, Hgblame and Svnblame report(s).

As a result, running PHP_CodeSniffer over untrusted files, for example, in a CI pipeline that scans pull requests, or on a developer machine reviewing third-party code, could result in attacker-controlled shell commands being executed when the Gitblame, Hgblame or Svnblame report(s) would process a file whose name contains shell metacharacters.

Users using the default Full report, or any of the other non-*blame reports, are not affected.
Users on a runtime platform which does not allow filenames to contain shell metacharacters, such as " and ;, are not affected.

Patched versions

The issue has been fixed in PHP_CodeSniffer v3.13.6 and v4.0.2. We recommend all users upgrade to these versions at their earliest convenience.

Workaround

Users of PHP_CodeSniffer who cannot upgrade immediately should ensure they do not use the Gitblame, Hgblame or the Svnblame reports when scanning untrusted code.

This is especially relevant for CI jobs, pre-commit or review tooling, automated review services, and any service that scans untrusted repositories or uploaded source trees.

Credits

Many thanks to both @Faze-up and @edorian for responsibly disclosing this vulnerability.

How can I report a security bug?

Please report security vulnerabilities privately via the "Security and quality" tab on the PHP_CodeSniffer repository.

Severity

7.3 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "squizlabs/php_codesniffer"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.13.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "squizlabs/php_codesniffer"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.0.0"
            },
            {
              "fixed": "4.0.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-67434"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-78"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-08-06T21:31:34Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "### Impact\n\nPHP_CodeSniffer versions before v3.13.6 and v4.0.2 contain a command injection vulnerability in the code creating the `Gitblame`, `Hgblame` and `Svnblame` report(s).\n\nAs a result, running PHP_CodeSniffer over untrusted files, for example, in a CI pipeline that scans pull requests, or on a developer machine reviewing third-party code, could result in attacker-controlled shell commands being executed when the `Gitblame`, `Hgblame` or `Svnblame` report(s) would process a file whose name contains shell metacharacters.\n\n* Users using the default `Full` report, or any of the other non-*blame reports, are not affected.\n* Users on a runtime platform which does not allow filenames to contain shell metacharacters, such as `\"` and `;`, are not affected.\n\n### Patched versions\n\nThe issue has been fixed in PHP_CodeSniffer v3.13.6 and v4.0.2. We recommend all users upgrade to these versions at their earliest convenience.\n\n### Workaround\n\nUsers of PHP_CodeSniffer who cannot upgrade immediately should ensure they do not use the `Gitblame`, `Hgblame` or the `Svnblame` reports when scanning untrusted code.\n\nThis is especially relevant for CI jobs, pre-commit or review tooling, automated review services, and any service that scans untrusted repositories or uploaded source trees.\n\n### Credits\n\nMany thanks to both [@Faze-up](https://github.com/Faze-up) and [@edorian](https://github.com/edorian) for responsibly disclosing this vulnerability.\n\n### How can I report a security bug?\n\nPlease report security vulnerabilities privately via [the \"Security and quality\" tab on the PHP_CodeSniffer repository](https://github.com/PHPCSStandards/PHP_CodeSniffer/security).",
  "id": "GHSA-hmqg-cxww-wqhq",
  "modified": "2026-08-06T21:31:34Z",
  "published": "2026-08-06T21:31:34Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/PHPCSStandards/PHP_CodeSniffer/security/advisories/GHSA-hmqg-cxww-wqhq"
    },
    {
      "type": "WEB",
      "url": "https://github.com/PHPCSStandards/PHP_CodeSniffer/pull/1473"
    },
    {
      "type": "WEB",
      "url": "https://github.com/PHPCSStandards/PHP_CodeSniffer/commit/7a3a6bbf153a03fa3a9413afc60bded6b764e76b"
    },
    {
      "type": "WEB",
      "url": "https://github.com/PHPCSStandards/PHP_CodeSniffer/commit/f0e1ebb0563f0e5d7f190497a787bcaf8474f3fe"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/squizlabs/php_codesniffer/CVE-2026-67434.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/PHPCSStandards/PHP_CodeSniffer"
    },
    {
      "type": "WEB",
      "url": "https://github.com/PHPCSStandards/PHP_CodeSniffer/releases/tag/3.13.6"
    },
    {
      "type": "WEB",
      "url": "https://github.com/PHPCSStandards/PHP_CodeSniffer/releases/tag/4.0.2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "PHP_CodeSniffer gitblame report command injection via crafted filename"
}

CVE-2026-67434 (GCVE-0-2026-67434)

Vulnerability from cvelistv5 – Published: 2026-08-06 21:31 – Updated: 2026-08-07 15:37

Title

PHP_CodeSniffer gitblame report command injection via crafted filename

Summary

PHP_CodeSniffer tokenizes PHP files and detects violations of a defined set of coding standards. Prior to versions 3.13.6 and 4.0.2, PHP_CodeSniffer contains a command injection vulnerability in the code that generates the Gitblame, Hgblame, and Svnblame report formats. As a result, running PHP_CodeSniffer over untrusted files, for example in a continuous integration pipeline that scans pull requests, or on a developer machine reviewing third party code, could result in attacker controlled shell commands being executed when the Gitblame, Hgblame, or Svnblame report processes a file whose name contains shell metacharacters. Users using the default Full report, or any of the other non-blame reports, are not affected. Users on a runtime platform which does not allow filenames to contain shell metacharacters, such as " and ;, are not affected. This issue is fixed in versions 3.13.6 and 4.0.2.

Severity

7.3 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-07 15:36 UTC

CWE

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Assigner

GitHub_M mitre root Scorecard

References

6 references

URL	Tags
https://github.com/PHPCSStandards/PHP_CodeSniffer…	x_refsource_CONFIRM
https://github.com/PHPCSStandards/PHP_CodeSniffer…	x_refsource_MISC
https://github.com/PHPCSStandards/PHP_CodeSniffer…	x_refsource_MISC
https://github.com/PHPCSStandards/PHP_CodeSniffer…	x_refsource_MISC
https://github.com/PHPCSStandards/PHP_CodeSniffer…	x_refsource_MISC
https://github.com/PHPCSStandards/PHP_CodeSniffer…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
PHPCSStandards	PHP_CodeSniffer	Affected: < 3.13.6 Affected: >= 4.0.0, < 4.0.2

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-67434",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-07T15:36:31.165042Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-07T15:37:19.375Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "PHP_CodeSniffer",
          "vendor": "PHPCSStandards",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.13.6"
            },
            {
              "status": "affected",
              "version": "\u003e= 4.0.0, \u003c 4.0.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "PHP_CodeSniffer tokenizes PHP files and detects violations of a defined set of coding standards. Prior to versions 3.13.6 and 4.0.2, PHP_CodeSniffer contains a command injection vulnerability in the code that generates the Gitblame, Hgblame, and Svnblame report formats. As a result, running PHP_CodeSniffer over untrusted files, for example in a continuous integration pipeline that scans pull requests, or on a developer machine reviewing third party code, could result in attacker controlled shell commands being executed when the Gitblame, Hgblame, or Svnblame report processes a file whose name contains shell metacharacters. Users using the default Full report, or any of the other non-blame reports, are not affected. Users on a runtime platform which does not allow filenames to contain shell metacharacters, such as \" and ;, are not affected. This issue is fixed in versions 3.13.6 and 4.0.2."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "LOCAL",
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "PASSIVE",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-78",
              "description": "CWE-78: Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-06T21:31:32.511Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/PHPCSStandards/PHP_CodeSniffer/security/advisories/GHSA-hmqg-cxww-wqhq",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/PHPCSStandards/PHP_CodeSniffer/security/advisories/GHSA-hmqg-cxww-wqhq"
        },
        {
          "name": "https://github.com/PHPCSStandards/PHP_CodeSniffer/pull/1473",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/PHPCSStandards/PHP_CodeSniffer/pull/1473"
        },
        {
          "name": "https://github.com/PHPCSStandards/PHP_CodeSniffer/commit/7a3a6bbf153a03fa3a9413afc60bded6b764e76b",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/PHPCSStandards/PHP_CodeSniffer/commit/7a3a6bbf153a03fa3a9413afc60bded6b764e76b"
        },
        {
          "name": "https://github.com/PHPCSStandards/PHP_CodeSniffer/commit/f0e1ebb0563f0e5d7f190497a787bcaf8474f3fe",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/PHPCSStandards/PHP_CodeSniffer/commit/f0e1ebb0563f0e5d7f190497a787bcaf8474f3fe"
        },
        {
          "name": "https://github.com/PHPCSStandards/PHP_CodeSniffer/releases/tag/3.13.6",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/PHPCSStandards/PHP_CodeSniffer/releases/tag/3.13.6"
        },
        {
          "name": "https://github.com/PHPCSStandards/PHP_CodeSniffer/releases/tag/4.0.2",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/PHPCSStandards/PHP_CodeSniffer/releases/tag/4.0.2"
        }
      ],
      "source": {
        "advisory": "GHSA-hmqg-cxww-wqhq",
        "discovery": "UNKNOWN"
      },
      "title": "PHP_CodeSniffer gitblame report command injection via crafted filename"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-67434",
    "datePublished": "2026-08-06T21:31:32.511Z",
    "dateReserved": "2026-07-29T15:07:24.991Z",
    "dateUpdated": "2026-08-07T15:37:19.375Z",
    "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.

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.

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.

Action not permitted