CVE-2026-54789

01/תיאור (מקור, אנגלית)

mod_auth_openidc is an OpenID Certified authentication and authorization module for the Apache 2.x HTTP server that implements the OpenID Connect Relying Party functionality. Prior to 2.4.19.4, an out-of-bounds read and a one-byte out-of-bounds write exist in the state-cookie parser of `mod_auth_openidc`. The issue is fixed in version 2.4.19.4 by stopping the scan at the string terminator so a value-less token is rejected. No in-product workarounds are available. As a stop-gap, an upstream reverse proxy or WAF that rejects or normalizes malformed `Cookie` headers (tokens lacking `=`) can reduce exposure, but upgrading is the recommended remediation.

02/קישורים3

• github.com/OpenIDC/mod_auth_openidc/commit/8017478471cc071c49a‮…
• github.com/OpenIDC/mod_auth_openidc/security/advisories/GHSA-v‮…
• lists.debian.org/debian-lts-announce/2026/09/msg00003.html