{"id":"CVE-2026-67434","aliases":["GHSA-hmqg-cxww-wqhq"],"url":"https://o3.security/vulnerability/CVE-2026-67434","summary":"PHP_CodeSniffer gitblame report command injection via crafted filename","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).","published":"2026-08-06T21:31:32.511Z","modified":"2026-10-28T02:31:12.207933678Z","cvss":null,"epss":{"score":0.00701,"percentile":0.51605,"asOf":"2026-09-17"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"squizlabs/php_codesniffer","fixedVersion":"3.13.6"},{"ecosystem":"Packagist","name":"squizlabs/php_codesniffer","fixedVersion":"4.0.2"}],"fix":{"url":"https://github.com/PHPCSStandards/PHP_CodeSniffer/commit/7a3a6bbf153a03fa3a9413afc60bded6b764e76b","label":"PHPCSStandards/PHP_CodeSniffer@7a3a6bb"},"references":[{"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"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67434.json"},{"type":"ADVISORY","url":"https://github.com/PHPCSStandards/PHP_CodeSniffer/security/advisories/GHSA-hmqg-cxww-wqhq"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-67434"},{"type":"FIX","url":"https://github.com/PHPCSStandards/PHP_CodeSniffer/commit/7a3a6bbf153a03fa3a9413afc60bded6b764e76b"},{"type":"FIX","url":"https://github.com/PHPCSStandards/PHP_CodeSniffer/commit/f0e1ebb0563f0e5d7f190497a787bcaf8474f3fe"},{"type":"FIX","url":"https://github.com/PHPCSStandards/PHP_CodeSniffer/pull/1473"},{"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"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-28T02:31:12.207933678Z"}}