UBUNTU-CVE-2026-41570 (CVE-2026-41570)
Vulnerability from osv_ubuntu – Published: 2026-05-08 15:16 – Updated: 2026-05-20 15:27 – Source website
VLAI
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.
Severity
7.8 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "phpunit",
"binary_version": "5.1.3-1+ubuntu3+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "phpunit",
"purl": "pkg:deb/ubuntu/phpunit@5.1.3-1+ubuntu3+esm1?arch=source\u0026distro=esm-apps/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.7.6-1",
"4.8.16-1",
"5.1.3-1ubuntu1",
"5.1.3-1+build1",
"5.1.3-1+ubuntu1",
"5.1.3-1+ubuntu3",
"5.1.3-1+ubuntu3+esm1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "phpunit",
"binary_version": "6.5.5-1ubuntu2"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "phpunit",
"purl": "pkg:deb/ubuntu/phpunit@6.5.5-1ubuntu2?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.4.6-2",
"5.4.6-3",
"6.5.5-1ubuntu2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "phpunit",
"binary_version": "8.5.2-1ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "phpunit",
"purl": "pkg:deb/ubuntu/phpunit@8.5.2-1ubuntu1?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"7.5.6-1",
"8.5.2-1ubuntu1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "phpunit",
"binary_version": "9.5.10-1ubuntu2"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "phpunit",
"purl": "pkg:deb/ubuntu/phpunit@9.5.10-1ubuntu2?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"9.5.4-1",
"9.5.10-1ubuntu2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "phpunit",
"binary_version": "9.6.17-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "phpunit",
"purl": "pkg:deb/ubuntu/phpunit@9.6.17-1?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"9.6.10-1",
"9.6.13-1",
"9.6.15-1",
"9.6.16-1",
"9.6.17-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "phpunit",
"binary_version": "11.5.19-1build4"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "phpunit",
"purl": "pkg:deb/ubuntu/phpunit@11.5.19-1build4?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"11.5.3-1ubuntu4",
"11.5.19-1build4"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "phpunit",
"binary_version": "13.0.0-2ubuntu6"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "phpunit",
"purl": "pkg:deb/ubuntu/phpunit@13.0.0-2ubuntu6?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"11.5.19-1build4",
"13.0.0-2ubuntu6"
]
}
],
"aliases": [],
"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\u0027s 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\u0027s 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.",
"id": "UBUNTU-CVE-2026-41570",
"modified": "2026-05-20T15:27:27Z",
"published": "2026-05-08T15:16:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-41570"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-41570"
},
{
"type": "REPORT",
"url": "https://github.com/sebastianbergmann/phpunit/security/advisories/GHSA-qrr6-mg7r-m243"
},
{
"type": "REPORT",
"url": "https://github.com/sebastianbergmann/phpunit/pull/6592"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-41570"
]
}
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Sightings
| Author | Source | Type | Date | Other |
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Nomenclature
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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