ALSA-2026:21391
ALSA-2026:21391 · Important: httpd security update
This page contains facts from public vulnerability sources. Check the original advisory before updating.
The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server. Security Fix(es): * httpd: mod_proxy_ajp: heap-based buffer over-read and memory disclosure in ajp_parse_data() (CVE-2026-34059) * httpd: mod_proxy_ajp: heap-based buffer over-read due to missing null-termination check (CVE-2026-34032) * httpd: mod_proxy_ajp: off-by-one out-of-bounds reads in AJP getter functions (CVE-2026-33857) * httpd: mod_authn_socache: NULL pointer dereference can cause a child process crash (CVE-2026-33007) * Apache HTTP Server: mod_proxy_ajp: Apache HTTP Server mod_proxy_ajp: Arbitrary code execution via heap-based buffer overflow (CVE-2026-28780) 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.
Fix available
- Published
- Updated
Stack: system
Affected products and versions
httpd AlmaLinux:9
- Affected ranges
- ECOSYSTEM: < 2.4.62-13.el9_8.1
Update to 2.4.62-13.el9_8.1
httpd-core AlmaLinux:9
- Affected ranges
- ECOSYSTEM: < 2.4.62-13.el9_8.1
Update to 2.4.62-13.el9_8.1
httpd-devel AlmaLinux:9
- Affected ranges
- ECOSYSTEM: < 2.4.62-13.el9_8.1
Update to 2.4.62-13.el9_8.1
httpd-filesystem AlmaLinux:9
- Affected ranges
- ECOSYSTEM: < 2.4.62-13.el9_8.1
Update to 2.4.62-13.el9_8.1
httpd-manual AlmaLinux:9
- Affected ranges
- ECOSYSTEM: < 2.4.62-13.el9_8.1
Update to 2.4.62-13.el9_8.1
httpd-tools AlmaLinux:9
- Affected ranges
- ECOSYSTEM: < 2.4.62-13.el9_8.1
Update to 2.4.62-13.el9_8.1
mod_ldap AlmaLinux:9
- Affected ranges
- ECOSYSTEM: < 2.4.62-13.el9_8.1
Update to 2.4.62-13.el9_8.1
mod_lua AlmaLinux:9
- Affected ranges
- ECOSYSTEM: < 2.4.62-13.el9_8.1
Update to 2.4.62-13.el9_8.1
mod_proxy_html AlmaLinux:9
- Affected ranges
- ECOSYSTEM: < 1:2.4.62-13.el9_8.1
Update to 1:2.4.62-13.el9_8.1
mod_session AlmaLinux:9
- Affected ranges
- ECOSYSTEM: < 2.4.62-13.el9_8.1
Update to 2.4.62-13.el9_8.1
mod_ssl AlmaLinux:9
- Affected ranges
- ECOSYSTEM: < 1:2.4.62-13.el9_8.1
Update to 1:2.4.62-13.el9_8.1
Original sources
- https://access.redhat.com/errata/RHSA-2026:21391
- https://access.redhat.com/security/cve/CVE-2026-28780
- https://access.redhat.com/security/cve/CVE-2026-33007
- https://access.redhat.com/security/cve/CVE-2026-33857
- https://access.redhat.com/security/cve/CVE-2026-34032
- https://access.redhat.com/security/cve/CVE-2026-34059
- https://bugzilla.redhat.com/2464940
- https://bugzilla.redhat.com/2464952
- https://bugzilla.redhat.com/2464953
- https://bugzilla.redhat.com/2465299
- https://bugzilla.redhat.com/2466913
- https://errata.almalinux.org/9/ALSA-2026-21391.html
- https://osv.dev/vulnerability/ALSA-2026:21391