httpd: Apache HTTP Server: Heap-based Buffer Overflow via malicious backend servers

A flaw was found in Apache HTTP Server. This heap-based buffer overflow vulnerability can be exploited by a malicious backend server when using ProxyPassReverseCookie directives. This could lead to a denial of service DoS condition, making the server unavailable to legitimate users...

K000162008: Apache HTTP Server vulnerability CVE-2026-34059

Security Advisory Description Buffer Over-read vulnerability in Apache HTTP Server. 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-2026-34059 Impact There is no impact; F5 products are not affected by this...

K000162004: Apache HTTP Server vulnerability CVE-2026-33006

Security Advisory Description A timing attack against modauthdigest in Apache HTTP Server 2.4.66 allows a bypass of Digest authentication by a remote attacker. Users are recommended to upgrade to version 2.4.67, which fixes this issue. CVE-2026-33006 Impact There is no impact; F5 products are not...

SUSE SLES16: apache2 / apache2-devel / apache2-event / apache2-manual / etc (SUSE-SU-2026:22209-1)

The remote SUSE Linux SLES16 / SLESSAP16 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:22209-1 advisory. This update for apache2 fixes the following issues - CVE-2026-23918: http2: double free and possible RCE on early reset bsc1263957...

CVE-2026-48946

The K2 frontend article-attachment upload path accepts files whose extension is .php, and Apache's standard modphp matches .php$ and executes them under the K2 web user. A K2 Author can upload a shell.php, then fetch /media/k2/attachments/shell.php and execute arbitrary PHP code in the web...

Exploit for Path Traversal in Apache Http_Server

CVE-2021-42013 — PoC: Path Traversal + RCE via modcgi bypass...

RHSA-2026:27200 Red Hat Security Advisory: Red Hat JBoss Core Services Apache HTTP Server 2.4.62 SP4 security update

Bulletin has no description...

Exploit for Path Traversal in Apache Http_Server

CVE-2021-41773 — PoC: Path Traversal + RCE via modcgi So...

mod_http2: Apache HTTP Server: HTTP/2 DoS by Memory Increase

A flaw was found in Apache HTTP Server. This late release of memory after effective lifetime vulnerability allows a remote, unauthenticated attacker to cause a denial of service DoS. The vulnerability can lead to resource exhaustion, making the server unavailable to legitimate users...

httpd: NULL pointer dereference via specially crafted request

A flaw was found in the moddavlock module of httpd. This vulnerability allows a remote unauthenticated attacker to crash the server due to a NULL pointer dereference via a specially crafted request...

mod_http2: Apache HTTP Server: HTTP/2 DoS by Memory Increase

A flaw was found in Apache HTTP Server. This late release of memory after effective lifetime vulnerability allows a remote, unauthenticated attacker to cause a denial of service DoS. The vulnerability can lead to resource exhaustion, making the server unavailable to legitimate users...

httpd: mod_proxy_ajp: heap-based buffer over-read due to missing null-termination check

A flaw was found in the modproxyajp module of httpd. When processing AJP Apache JServ Protocol messages, the server fails to properly check if a string is null-terminated before attempting to read it, allowing an attacker or a malformed request to cause a heap-based buffer over-read. This issue...

Apache 2.4.66 HTTP/2 mod_http2 Double-Free Denial of Service

This script is a multi-mode security tool that triggers a denial of service against Apache HTTP Server version 2.4.66 related to a double-free condition in HTTP/2 handling...

[SECURITY] [DLA 4629-1] apache2 security update

------------------------------------------------------------------------- Debian LTS Advisory DLA-4629-1 [email protected] https://www.debian.org/lts/security/ Bastien Roucariès June 12, 2026 https://wiki.debian.org/LTS -...

Debian dla-4629 : apache2 - security update

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4629 advisory. - ------------------------------------------------------------------------- Debian LTS Advisory DLA-4629-1 [email protected]...

ALSA-2026:25225 Important: mod_http2 security update

The modh2 Apache httpd module implements the HTTP2 protocol h2+h2c on top of libnghttp2 for httpd 2.4 servers. Security Fixes: httpd: HTTP/2: Remote Denial of Service via compression bomb and Slowloris-style attack CVE-2026-49975 For more details about the security issues, including the impact, a...

httpd: Apache HTTP Server: Cross-site scripting in mod_proxy_ftp via HTML directory list generation

A flaw was found in Apache HTTP Server, specifically within the modproxyftp module. This cross-site scripting XSS vulnerability occurs during the generation of HTML directory lists when the server is configured to list FTP directory contents via either a forward or reverse proxy. An attacker coul...

httpd: Apache HTTP Server: Arbitrary code execution or denial of service via use-after-free in mod_ldap per-directory configuration

A flaw was found in Apache HTTP Server when using the modldap module in a per-directory configuration. This use-after-free vulnerability allows a remote attacker to potentially execute arbitrary code or cause a denial of service DoS due to improper memory handling. This could lead to system...

httpd: Apache HTTP Server: Buffer overflow in mod_proxy_html allows security bypass

A vulnerability has been identified in the Apache HTTP Server. If the server is configured to connect to a malicious or compromised backend server, an attacker could exploit this flaw to bypass security controls or run unauthorized code on the system...

BIT-APACHE-2026-44185 Apache HTTP Server: Stack Buffer Over-Read in mod_ssl OCSP `send_request`

Buffer Over-read vulnerability in Apache HTTP Server via outbound OCSP requests to an attacker controlled OCSP server This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to upgrade to version 2.4.68, which fixes the issue...