GHSA-hmqg-cxww-wqhq

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GHSA-hmqg-cxww-wqhq

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](https://github.com/Faze-up) and [@edorian](https://github.com/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](https://github.com/PHPCSStandards/PHP_CodeSniffer/security).

References: https://github.com/PHPCSStandards/PHP_CodeSniffer/security/advisories/GHSA-hmqg-cxww-wqhq, https://github.com/PHPCSStandards/PHP_CodeSniffer/pull/1473, https://github.com/PHPCSStandards/PHP_CodeSniffer/commit/7a3a6bbf153a03fa3a9413afc60bded6b764e76b, https://github.com/PHPCSStandards/PHP_CodeSniffer/commit/f0e1ebb0563f0e5d7f190497a787bcaf8474f3fe, https://github.com/FriendsOfPHP/security-advisories/blob/master/squizlabs/php_codesniffer/CVE-2026-67434.yaml, https://github.com/PHPCSStandards/PHP_CodeSniffer, https://github.com/PHPCSStandards/PHP_CodeSniffer/releases/tag/3.13.6, https://github.com/PHPCSStandards/PHP_CodeSniffer/releases/tag/4.0.2