{"id":"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.","aliases":["GHSA-qrr6-mg7r-m243"],"modified":"2026-07-15T01:48:51.041900470Z","published":"2026-05-08T14:33:51.630Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41570.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-88","CWE-93"]},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/sebastianbergmann/phpunit","events":[{"introduced":"1b7bd4788966bf1533901808657850b6c7876ec7"},{"last_affected":"89adcba73441b38db31d5c0473b61e2907311db0"}],"database_specific":{"cpe":["cpe:2.3:a:phpunit_project:phpunit:12.5.21:*:*:*:*:-:*:*","cpe:2.3:a:phpunit_project:phpunit:13.1.5:*:*:*:*:-:*:*"],"extracted_events":[{"introduced":"= 12.5.21"},{"last_affected":"= 12.5.21"},{"introduced":"= 13.1.5"},{"last_affected":"= 13.1.5"},{"introduced":"12.5.21"},{"last_affected":"12.5.21"},{"introduced":"13.1.5"},{"last_affected":"13.1.5"}],"source":["AFFECTED_FIELD","CPE_STRING"]}}],"versions":["12.5.21","13.1.5","= 12.5.21","= 13.1.5"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-41570.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}