CVE-2026-25237

PEAR is Vulnerable to PHP Code Execution via preg_replace /e in Bug Update Emails

State: Published
Severity: 9.2 Critical
Published: Feb 3, 2026
Updated: Feb 4, 2026
Reserved: Jan 30, 2026

Description

PEAR is a framework and distribution system for reusable PHP components. Prior to version 1.33.0, use of preg_replace() with the /e modifier in bug update email handling can enable PHP code execution if attacker-controlled content reaches the evaluated replacement. This issue has been patched in version 1.33.0.

Scores

CVSS	Score	Vector	Source
4.0	9.2 Critical	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	GitHub_M

Weaknesses

CWE-624 Executable Regular Expression Error

Affected Products

Product	Versions
pearwebpear	< 1.33.0Affected

References

https://github.com/pear/pearweb/security/advisories/GHSA-vhw6-hqh9-8r23

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