CVE-2024-9026: PHP

Low severity, CVSS 3.3. EPSS: 0.5% chance of exploitation in the next 30 days.

In PHP versions 8.1.* before 8.1.30, 8.2.* before 8.2.24, 8.3.* before 8.3.12, when using PHP-FPM SAPI and it is configured to catch workers output through catch_workers_output = yes, it may be possible to pollute the final log or remove up to 4 characters from the log messages by manipulating log message content. Additionally, if PHP-FPM is configured to use syslog output, it may be possible to further remove log data using the same vulnerability.

Affected products

• PHP PHP: from 8.1.0, before 8.1.30 (fixed in 8.1.30); from 8.2.0, before 8.2.24 (fixed in 8.2.24); from 8.3.0, before 8.3.12 (fixed in 8.3.12)

Published 2024-10-08. Last modified 2026-06-17.