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ALSA-2026:21391 — Important: httpd security update

Affected: AlmaLinux:9: httpd, AlmaLinux:9: httpd-core, AlmaLinux:9: httpd-devel, AlmaLinux:9: httpd-filesystem, AlmaLinux:9: httpd-manual, AlmaLinux:9: httpd-tools, AlmaLinux:9: mod_ldap, AlmaLinux:9: mod_lua, AlmaLinux:9: mod_proxy_html, AlmaLinux:9: mod_session and 1 more

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.

bdu:2026-06407

BELL-CVE-2026-28780

Affected: Alpaquita:23: apache2, Alpaquita:25: apache2, Alpaquita:stream: apache2

BIT-apache-2026-28780 — Apache HTTP Server: buffer overflow in mod_proxy_ajp via ajp_msg_check_header()

Affected: Bitnami: apache

This issue affects Apache HTTP Server: through 2.4.66.

Users are recommended to upgrade to version 2.4.67, which fixes the issue.

certfr-2026-avi-0530 — De multiples vulnérabilités ont été découvertes dans Apache HTTP Server. Certaines d'entre elles permettent à un attaqu…

certfr-2026-avi-0530

cnvd-2026-21699

EUVD-2026-367749

fkie_cve-2026-28780

This issue affects Apache HTTP Server: through 2.4.66.

Users are recommended to upgrade to version 2.4.67, which fixes the issue.

GHSA-wpww-4qvv-xpv8

This issue affects Apache HTTP Server: through 2.4.66.

Users are recommended to upgrade to version 2.4.67, which fixes the issue.

NCSC-2026-0134 — Kwetsbaarheden verholpen in Apache HTTP Server

NCSC-2026-0134

OESA-2026-2316 — httpd security update

Affected: openEuler:24.03-LTS-SP3: httpd

Apache HTTP Server is a powerful and flexible HTTP/1.1 compliant web server. Security Fix(es):

An escalation of privilege bug in various modules in Apache HTTP 2.4.66 and earlier allows local .htaccess authors to read files with the privileges of the httpd user.

Users are recommended to upgrade to version 2.4.67, which fixes this issue.(CVE-2026-24072)

This issue affects Apache HTTP Server: through 2.4.66.

Users are recommended to upgrade to version 2.4.67, which fixes the issue.(CVE-2026-28780)

Allocation of Resources Without Limits or Throttling vulnerability in Apache HTTP Server's mod_md via OCSP response data.

This issue affects Apache HTTP Server: from 2.4.30 through 2.4.66.

Users are recommended to upgrade to version 2.4.67, which fixes the issue.(CVE-2026-29168)

A NULL pointer dereference in mod_dav_lock in Apache HTTP Server 2.4.66 and earlier may allow an attacker to crash the server with a malicious request.mod_dav_lock is not used internally by mod_dav or mod_dav_fs.

The only known use-case for mod_dav_lock was mod_dav_svn from Apache Subversion earlier than version 1.2.0.

Users are recommended to upgrade to version 2.4.66, which fixes this issue, or remove…

openSUSE-SU-2026:10785-1 — apache2-2.4.67-1.1 on GA media

apache2-2.4.67-1.1 on GA media

RHSA-2026:21391 — Red Hat Security Advisory: httpd security update

Apache HTTP Server: mod_proxy_ajp: Apache HTTP Server mod_proxy_ajp: Arbitrary code execution via heap-based buffer overflow httpd: mod_authn_socache: NULL pointer dereference can cause a child process crash httpd: mod_proxy_ajp: off-by-one out-of-bounds reads in AJP getter functions httpd: mod_proxy_ajp: heap-based buffer over-read due to missing null-termination check httpd: mod_proxy_ajp: heap-based buffer over-read and memory disclosure in ajp_parse_data()

RLSA-2026:21391 — Important: httpd security update

Affected: Rocky Linux:9: httpd

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.

SUSE-SU-2026:2103-1 — Security update for apache2

Security update for apache2

UBUNTU-CVE-2026-28780

Affected: Ubuntu:Pro:14.04:LTS: apache2, Ubuntu:Pro:16.04:LTS: apache2, Ubuntu:Pro:18.04:LTS: apache2, Ubuntu:Pro:20.04:LTS: apache2, Ubuntu:22.04:LTS: apache2, Ubuntu:24.04:LTS: apache2, Ubuntu:25.10: apache2, Ubuntu:26.04:LTS: apache2

Heap-based Buffer Overflow vulnerability in mod_proxy_ajp of Apache HTTP Server. If mod_proxy_ajp connects to a malicious AJP server this AJP server can send a malicious AJP message back to mod_proxy_ajp and cause it to write 4 attacker controlled bytes after the end of a heap based buffer. This issue affects Apache HTTP Server: through 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue.

WID-SEC-W-2026-1354 — Apache HTTP Server: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Apache HTTP Server ausnutzen, um erweiterte Privilegien zu erlangen, beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.