httpd: mod_proxy_ajp: off-by-one out-of-bounds reads in AJP getter functions

A flaw was found in the modproxyajp module of httpd. When processing AJP Apache JServ Protocol messages, the AJP getter functions attempt to read data beyond the allocated buffer size, allowing an attacker or a malformed request to cause an out-of-bounds read. This issue leads to a denial of...

httpd security update

An update is available for httpd. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The httpd packages provide the Apache HTTP Server, a powerful, efficient, and...

AlmaLinux 9 : httpd (ALSA-2026:21391)

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:21391 advisory. httpd: modproxyajp: heap-based buffer over-read and memory disclosure in ajpparsedata CVE-2026-34059 httpd: modproxyajp: heap-based buffer over-read due ...

AlmaLinux 10 : httpd (ALSA-2026:21433)

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:21433 advisory. httpd: modproxyajp: heap-based buffer over-read and memory disclosure in ajpparsedata CVE-2026-34059 httpd: modproxyajp: heap-based buffer over-read due...

RHEL 10 : httpd (RHSA-2026:21433)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:21433 advisory. The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server. Security Fixes: httpd: modproxyajp:...

httpd: mod_proxy_ajp: heap-based buffer over-read and memory disclosure in ajp_parse_data()

A flaw was found in the modproxyajp module of httpd. When processing AJP Apache JServ Protocol messages, the ajpparsedata function attempts to read data beyond the allocated buffer size, allowing an attacker or a malformed request to cause a heap-based buffer over-read. This issue potentially lea...

Important: Red Hat Security Advisory: httpd security update

An update for httpd is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

OESA-2026-2402 httpd security update

Apache HTTP Server is a powerful and flexible HTTP/1.1 compliant web server. Security Fixes: A NULL pointer dereference in the modauthnsocache in Apache HTTP Server 2.4.66 and earlier allows an unauthenticated remote user to crash a child process in a caching forward proxy configuration. Users ar...

httpd: Fix of 5 CVEs

CVE-2026-28780: modproxyajp 4-byte heap buffer overflow when contacting a malicious AJP backend off-by-AJPHEADERLEN check in ajpmsgcheckheader - CVE-2026-34059: modproxyajp heap over-read in ajpparsedata on short AJP replies - CVE-2026-33006: modauthdigest used non-constant-time strcmp for...

CLSA-2026-1779119053 Fix of 8 CVEs

SECURITY UPDATE: modproxyajp heap buffer over-read in ajpmsggetstring - debian/patches/CVE-2026-34032.patch: add buffer checks in modules/proxy/ajpmsg.c. - CVE-2026-34032 SECURITY UPDATE: AJP getter functions off-by-one out-of-bounds reads - debian/patches/CVE-2026-33857.patch: fix length checks ...

CLSA-2026-1779118679 Fix of 8 CVEs

SECURITY UPDATE: modproxyajp heap buffer over-read in ajpmsggetstring - debian/patches/CVE-2026-34032.patch: add buffer checks in modules/proxy/ajpmsg.c. - CVE-2026-34032 SECURITY UPDATE: AJP getter functions off-by-one out-of-bounds reads - debian/patches/CVE-2026-33857.patch: fix length checks ...

CLSA-2026-1778934210 Fix of 7 CVEs

SECURITY UPDATE: off-by-one OOB read in modproxyajp message getters - debian/patches/CVE-2026-33857.patch: tighten length checks msg-len - = msg-len in ajpmsggetuint8/16/32 and ajpmsgpeekuint8/16 in modules/proxy/ajpmsg.c. - CVE-2026-33857 SECURITY UPDATE: heap over-read in modproxyajp via missin...

OESA-2026-2319 httpd security update

Apache HTTP Server is a powerful and flexible HTTP/1.1 compliant web server. Security Fixes: 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...

CLSA-2026-1778254557 httpd: Fix of 8 CVEs

CVE-2026-24072: modrewrite/modsetenvif: use APEXPRFLAGRESTRICTED in htaccess to prevent reading server-side files via apexpr from .htaccess - CVE-2026-29169: moddavlock: NULL pointer dereference in davgenericrefreshlocks use dpscan instead of dp - CVE-2026-33006: modauthdigest: timing attack —...

MGASA-2026-0129 Updated apache packages fix security vulnerabilities

http2: double free and possible RCE on early reset. CVE-2026-23918 modrewrite elevation of privileges via apexpr. CVE-2026-24072 buffer overflow in modproxyajp via ajpmsgcheckheader. CVE-2026-28780 modmd unrestricted OCSP response. CVE-2026-29168 moddavlock indirect lock crash. CVE-2026-29169...

Updated apache packages fix security vulnerabilities

http2: double free and possible RCE on early reset. CVE-2026-23918 modrewrite elevation of privileges via apexpr. CVE-2026-24072 buffer overflow in modproxyajp via ajpmsgcheckheader. CVE-2026-28780 modmd unrestricted OCSP response. CVE-2026-29168 moddavlock indirect lock crash. CVE-2026-29169...

CLSA-2026-1778254552 httpd: Fix of 8 CVEs

CVE-2026-24072: modrewrite/modsetenvif: use APEXPRFLAGRESTRICTED in htaccess to prevent reading server-side files via apexpr from .htaccess - CVE-2026-29169: moddavlock: NULL pointer dereference in davgenericrefreshlocks use dpscan instead of dp - CVE-2026-33006: modauthdigest: timing attack —...

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

Heap-based Buffer Overflow vulnerability in modproxyajp of Apache HTTP Server. If modproxyajp connects to a malicious AJP server this AJP server can send a malicious AJP message back to modproxyajp and cause it to write 4 attacker controlled bytes after the end of a heap based buffer. This issue...

PT-2026-38461

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...

CVE-2026-28780

A flaw was found in modproxyajp of Apache HTTP Server. This heap-based buffer overflow vulnerability allows a remote attacker, by connecting to a malicious AJP Apache JServ Protocol server, to send a specially crafted message. This message can cause modproxyajp to write attacker-controlled data...