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Red Hat Security Advisory

RHSA-2026:44438

compat-openssl11 security update

Released 2026-07-23 · Red Hat rating Important · View on Red Hat →

Fixed in

Fixes 1 record

TI-2026-33226 CVE-2026-45447 · GHSA-f684-cpcq-j565

Heap Use-After-Free in the PKCS7_verify() Function

Priority MEDIUM 47

Issue summary: A specially crafted PKCS#7 or S/MIME signed message could trigger a use-after-free during PKCS#7 signature verification.

CVSS 3.1HIGH 8.8 Network Low privileges No interaction EPSS 0.04002 Published 2026-06-09 Partial fix · 4.0.1, 3.6.3 +5 CWE-416