{"id":"CVE-2026-41570","aliases":["GHSA-qrr6-mg7r-m243"],"url":"https://o3.security/vulnerability/CVE-2026-41570","summary":"PHPUnit: Argument injection via newline in PHP INI values forwarded to child processes","details":"PHPUnit is a testing framework for PHP. In versions 12.5.21 and 13.1.5, PHPUnit forwards PHP INI settings to child processes (used for isolated/PHPT test execution) as -d name=value command-line arguments without neutralizing INI metacharacters. Because PHP's INI parser interprets \" as a string delimiter, ; as the start of a comment, and most importantly a newline as a directive separator, a value containing a newline is parsed by the child process as multiple INI directives. An attacker able to influence a single INI value can therefore inject arbitrary additional directives into the child's configuration, including auto_prepend_file, extension, disable_functions, open_basedir, and others. Setting auto_prepend_file to an attacker-controlled path yields remote code execution in the child process. This issue has been patched in versions 12.5.22 and 13.1.6.","published":"2026-05-08T14:33:51.630Z","modified":"2026-07-15T01:48:51.041900470Z","cvss":{"score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"phpunit/phpunit","fixedVersion":"12.5.22"},{"ecosystem":"Packagist","name":"phpunit/phpunit","fixedVersion":"13.1.6"}],"fix":{"url":"https://github.com/sebastianbergmann/phpunit/pull/6592","label":"sebastianbergmann/phpunit#6592"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41570.json"},{"type":"ADVISORY","url":"https://github.com/sebastianbergmann/phpunit/security/advisories/GHSA-qrr6-mg7r-m243"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41570"},{"type":"FIX","url":"https://github.com/sebastianbergmann/phpunit/pull/6592"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:48:51.041900470Z"}}