What is CVE-2026-41570?

CVE-2026-41570 is a high-severity vulnerability in Phpunit_project Phpunit, classified under Argument Injection. CVSS score: 7.8/10. Published 2026-05-08.

How severe is CVE-2026-41570?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Phpunit_project Phpunit

CVE-2026-41570

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 metachara…

EPSS: 0.001 (22.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Phpunit_project Phpunit — versions 12.5.21, 13.1.5
Sebastianbergmann Phpunit — versions = 12.5.21, = 13.1.5

Weakness classification (CWE)

References

https://github.com/sebastianbergmann/phpunit/security/advisories/GHSA-qrr6-mg7r-m243 (x_refsource_CONFIRM, Patch, Mitigation, Vendor Advisory)
https://github.com/sebastianbergmann/phpunit/pull/6592 (Patch, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2026-41570?: CVE-2026-41570 is a high-severity vulnerability in Phpunit_project Phpunit, classified under Argument Injection. CVSS score: 7.8/10. Published 2026-05-08.
How severe is CVE-2026-41570?: High severity. CVSS v3 base score is 7.8 out of 10.