CLEANSTART-2026-JH66547 Improper escaping of output in mod_rewrite in Apache HTTP Server 2

Security vulnerability affects the apache2 package. Improper escaping of output in modrewrite in Apache HTTP Server 2...

CLEANSTART-2026-FU14728 SSRF in Apache HTTP Server on Windows with mod_rewrite in server/vhost context, allows to potentially leak NTML hashes to a malicious server via SSRF and malicious requests

Security vulnerability affects the apache2 package. SSRF in Apache HTTP Server on Windows with modrewrite in server/vhost context, allows to potentially leak NTML hashes to a malicious server via SSRF and malicious requests...

CentOS Linux 8.4 [TuxCare] Security Update: httpd / httpd-devel / httpd-filesystem / httpd-manual / httpd-tools / etc (CENTOS8.4:CLSA-2026:1791552138)

The CentOS Linux 8.4 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS8.4:CLSA-2026:1791552138 advisory. - A NULL pointer dereference in modxml2enc in Apache Software Foundation Apache HTTP Server before 2.4.69 on all platforms allows an untruste...

AlmaLinux 9.2 [TuxCare] Security Update: httpd / httpd-core / httpd-devel / httpd-filesystem / httpd-manual / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1791538487)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1791538487 advisory. - Deployment of wrong handler vulnerability in Apache HTTP Server allows the target of some internal redirects from CGI programs to...

AlmaLinux 9.2 [TuxCare] Security Update: httpd / httpd-core / httpd-devel / httpd-filesystem / httpd-manual / etc (ALMALINUX9.2:CLSA-2026:1791536084)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1791536084 advisory. - Out-of-bounds Write vulnerability in Apache HTTP Server's modcharsetlite. This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68...

CentOS Linux 8.5 [TuxCare] Security Update: httpd / httpd-devel / httpd-filesystem / httpd-manual / httpd-tools / etc (CENTOS8.5:CLSA-2026:1791552137)

The CentOS Linux 8.5 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS8.5:CLSA-2026:1791552137 advisory. - A NULL pointer dereference in modxml2enc in Apache Software Foundation Apache HTTP Server before 2.4.69 on all platforms allows an untruste...

Exploit for Path Traversal in Apache Http_Server

Apache HTTP Server 2.4.50 Path Traversal and RCE CVE-2021-420...

CVE-2021-41773

CVE-2021-41773 Apache2 2.4.49 - LFI & RCE Exploit Info Exploit Title: Apache HTTP Server 2.4.49 - Path Traversal & Remote Code Execution RCE Exploit Author: Gaurav Raj https://gauravraj.xyz https://blog.gauravraj.xyz Vendor Homepage: https://apache.org/ Version: 2.4.49 Tested on: 2.4.49 CVE :...

mod_auth_openidc: mod_auth_openidc: Denial of Service via malformed state cookie parsing

A flaw was found in modauthopenidc, an OpenID Connect Relying Party module for Apache HTTP servers. A remote attacker can exploit this vulnerability by sending a specially crafted HTTP request with a malformed state cookie. This can lead to an out-of-bounds read and a one-byte out-of-bounds write...

Important: Red Hat Security Advisory: mod_auth_openidc security update

An update for modauthopenidc 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...

Exploit for Path Traversal in Apache Http_Server

Apache HTTP Server 2.4.49 Path Traversal CVE-2021-41773 Vu...

RLSA-2026:77369 Important: mod_auth_openidc:2.3 security update

The modauthopenidc is an OpenID Connect authentication module for Apache HTTP Server. It enables an Apache HTTP Server to operate as an OpenID Connect Relying Party and/or OAuth 2.0 Resource Server. Security Fixes: modauthopenidc: modauthopenidc: Denial of Service via malformed state cookie parsi...

EulerOS 2.0 SP15 : mod_http2 (EulerOS-SA-2026-3992)

According to the versions of the modhttp2 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's modhttp leads to denial of service via malicious HTTP...

CentOS Linux 8.4 [TuxCare] Security Update: httpd / httpd-devel / httpd-filesystem / httpd-manual / httpd-tools / etc Multiple Vulnerabilities (CENTOS8.4:CLSA-2026:1791459292)

The CentOS Linux 8.4 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS8.4:CLSA-2026:1791459292 advisory. - Inconsistent Interpretation of HTTP Requests 'HTTP Request/Response Smuggling' response smuggling vulnerability in Apache HTTP...

ALSA-2026:79177 Important: mod_auth_openidc security update

The modauthopenidc is an OpenID Connect authentication module for Apache HTTP Server. It enables an Apache HTTP Server to operate as an OpenID Connect Relying Party and/or OAuth 2.0 Resource Server. Security Fixes: modauthopenidc: modauthopenidc: Denial of Service via malformed state cookie parsi...

EulerOS 2.0 SP15 : mod_http2 (EulerOS-SA-2026-3926)

According to the versions of the modhttp2 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's modhttp leads to denial of service via malicious HTTP...

CentOS Linux 8.5 [TuxCare] Security Update: httpd / httpd-devel / httpd-filesystem / httpd-manual / httpd-tools / etc Multiple Vulnerabilities (CENTOS8.5:CLSA-2026:1791458607)

The CentOS Linux 8.5 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS8.5:CLSA-2026:1791458607 advisory. - Inconsistent Interpretation of HTTP Requests 'HTTP Request/Response Smuggling' response smuggling vulnerability in Apache HTTP...

Important: mod_auth_openidc security update

The modauthopenidc is an OpenID Connect authentication module for Apache HTTP Server. It enables an Apache HTTP Server to operate as an OpenID Connect Relying Party and/or OAuth 2.0 Resource Server. Security Fixes: modauthopenidc: modauthopenidc: Denial of Service via malformed state cookie parsi...

Security Bulletin: Multiple vulnerabilities affect IBM Cloud Pak System

Summary Multiple vulnerabilities affect IBM Cloud Pak System. These vulnerabilties have been addressed with IBM Cloud Pak System 2.3.5.1. Vulnerability Details CVEID:CVE-2025-15467 DESCRIPTION: Issue summary: Parsing CMS AuthEnvelopedData or EnvelopedData message with maliciously crafted AEAD...

USN-8898-1: Apache HTTP Server vulnerabilities

It was discovered that Apache HTTP Server's modrewrite module incorrectly handled memory when performing certain variable lookups. A remote attacker could possibly use this issue to cause a denial of service or execute arbitrary code. CVE-2026-56154 Lucian Nitescu, Simon Kappel, and Gianluca...