Red Hat Security Advisory

RHSA-2026:0011

httpd:2.4 security update

Released 2026-01-05 · Red Hat rating Important · View on Red Hat →

Fixed in

Red Hat Enterprise Linux AppStream AUS (v.8.6) httpd-2.4.37-47.module+el8.6.0+23843+c27a5dc4.12.src::httpd:2.4, httpd-2.4.37-47.module+el8.6.0+23843+c27a5dc4.12.x86_64::httpd:2.4, httpd-devel-2.4.37-47.module+el8.6.0+23843+c27a5dc4.12.x86_64::httpd:2.4 +11
Red Hat Enterprise Linux AppStream E4S (v.8.6) httpd-2.4.37-47.module+el8.6.0+23843+c27a5dc4.12.aarch64::httpd:2.4, httpd-2.4.37-47.module+el8.6.0+23843+c27a5dc4.12.ppc64le::httpd:2.4, httpd-2.4.37-47.module+el8.6.0+23843+c27a5dc4.12.s390x::httpd:2.4 +38
Red Hat Enterprise Linux AppStream TUS (v.8.6) httpd-2.4.37-47.module+el8.6.0+23843+c27a5dc4.12.src::httpd:2.4, httpd-2.4.37-47.module+el8.6.0+23843+c27a5dc4.12.x86_64::httpd:2.4, httpd-devel-2.4.37-47.module+el8.6.0+23843+c27a5dc4.12.x86_64::httpd:2.4 +11

Fixes 2 records

TI-2025-35937 CVE-2025-58098 · GHSA-4m29-g52g-c6qc

Apache HTTP Server: Server Side Includes adds query string to #exec cmd=...

MEDIUM 41

Apache HTTP Server 2.4.65 and earlier with Server Side Includes (SSI) enabled and mod_cgid (but not mod_cgi) passes the shell-escaped query string to #exec cmd="..." directives.

CVSS 3.1HIGH 8.3 Network Low privileges No interaction EPSS 0.01526 Published 2025-12-05 Fixed in 2.4.66 CWE-201

TI-2025-35173 CVE-2025-55753 · GHSA-3j5h-f552-7rhh

Apache HTTP Server: mod_md (ACME), unintended retry intervals

LOW 33

An integer overflow in the case of failed ACME certificate renewal leads, after a number of failures (~30 days in default configurations), to the backoff timer becoming 0.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00483 Published 2025-12-05 Fixed in 2.4.66 CWE-190