High
phpunit — security advisory
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.
- Products
- phpunit
- Affected versions
- 11.5.19-1build4, 11.5.3-1ubuntu4, 13.0.0-2ubuntu6, 13.2.6+ds-1, 4.7.6-1, 4.8.16-1, 5.1.3-1+build1, 5.1.3-1+ubuntu1, 5.1.3-1+ubuntu3, 5.1.3-1+ubuntu3+esm1, 5.1.3-1ubuntu1, 5.4.6-2, 5.4.6-3, 6.5.5-1ubuntu2, 7.5.6-1, 8.5.2-1ubuntu1, 9.5.10-1ubuntu2, 9.5.4-1, 9.6.10-1, 9.6.13-1, 9.6.15-1, 9.6.16-1, 9.6.17-1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-41570
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 02:11 UTC · Revision 1
Source evidence
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.
osv:UBUNTU-CVE-2026-41570
phpunit
Fixed versions: Not specified
phpunit
Fixed versions: Not specified
phpunit
Fixed versions: Not specified
phpunit
Fixed versions: Not specified
phpunit
Fixed versions: Not specified
phpunit
Fixed versions: Not specified
phpunit
Fixed versions: Not specified
phpunit
Fixed versions: Not specified
Complete source record
{
"id": "c3508a0607863251aa68356404b0cd8b9c204c74103cec0ac7222f1c844b7cc3",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-41570",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-41570",
"summary": "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.",
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"aliases": [
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"modified": "2026-10-17T12:58:15.403122108Z",
"provider": "osv",
"upstream": [
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],
"references": [
"https://ubuntu.com/security/CVE-2026-41570",
"https://www.cve.org/CVERecord?id=CVE-2026-41570",
"https://github.com/sebastianbergmann/phpunit/security/advisories/GHSA-qrr6-mg7r-m243",
"https://github.com/sebastianbergmann/phpunit/pull/6592"
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"security_relevant": true,
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"source_id": "core-osv",
"document_id": 358456,
"published_at": "2026-05-08T15:16:00+00:00"
}