RHSA-2026:89111 — Security Advisory
Red Hat Security Advisory: php:8.3 security update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · October 27, 2026
Updated · October 30, 2026
Topic
An update for the php:8.3 module is now available for Red Hat Enterprise Linux 9.6 Extended Update Support.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Server.
Security Fix(es):
-
php: OOM bailout during request parsing leads to memory corruption and RCE (CVE-2026-109618)
-
php: fatal error handling retains stale request state leading to use-after-free (CVE-2026-109619)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.