Red Hat Security Advisory

RHSA-2026:87071

php8.4 security update

Released 2026-10-21 · Red Hat rating Important · View on Red Hat →

Fixed in

Red Hat Enterprise Linux AppStream (v. 10) php8.4-8.4.27-1.el10_2, php8.4-bcmath-8.4.27-1.el10_2, php8.4-cli-8.4.27-1.el10_2 +22

TI-2026-78794 CVE-2026-109619

CRITICAL 99KEV

PHP has various global state that temporarily points into request memory.

CVSS 4.0CRITICAL 9.2 Network No auth No interaction EPSS 0.99999 Published 2026-10-21 Partial fix · 8.2.35, 8.3.36 +2 CWE-1325

TI-2026-78793 CVE-2026-109618

CRITICAL 99KEV

PHP uses longjmp() for out-of-memory (OOM) errors to exit the current context and abort handling of the request.

CVSS 4.0CRITICAL 9.2 Network No auth No interaction EPSS 0.99999 Published 2026-10-21 Partial fix · 8.2.35, 8.3.36 +2 CWE-1325

TI-2026-61976 CVE-2026-91765

LOW 39

cleanup_xml_node() in the SOAP XML parser recurses once per XML nesting level with no depth limit.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00378 Published 2026-09-25 Partial fix · 8.2.34, 8.3.35 +2 CWE-674