K000163653: Apache HTTP Server vulnerabilities CVE-2026-56449 and CVE-2026-57941

Security Advisory Description CVE-2026-56449 Out-of-bounds Write vulnerability in Apache HTTP Server's modproxyhtml with crafted HTTP response bodies. This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68. CVE-2026-57941 Use After Free vulnerability in Apache HTTP Server's modhttp2 via...

AlmaLinux 9.6 [TuxCare] Security Update: httpd / httpd-core / httpd-devel / httpd-filesystem / httpd-manual / etc Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1791471297)

The AlmaLinux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1791471297 advisory. - NULL Pointer Dereference vulnerability in Apache HTTP Servers modheartmonitor over unicast listener. This issue affects Apache HTT...

Rocky Linux 10.2 [CIQ] Security Update: httpd / httpd-core / httpd-core-debuginfo / httpd-debuginfo / etc (crlba-2026_50158)

The Rocky Linux 10.2 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlba-202650158 advisory. The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server. Bug Fixes and Enhancements: modproxyhtml regression in...

EulerOS 2.0 SP11 : httpd (EulerOS-SA-2026-4236)

According to the versions of the httpd packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Buffer Underwrite vulnerability in Apache HTTP Server on crafted regular expressions in the configuration. This issue affects Apache HTTP Server:...

Rocky Linux 9.6 [TuxCare] Security Update: httpd / httpd-core / httpd-devel / httpd-filesystem / httpd-manual / etc Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1791471297)

The Rocky Linux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1791471297 advisory. - NULL Pointer Dereference vulnerability in Apache HTTP Servers modheartmonitor over unicast listener. This issue affects Apache...

Amazon Linux 2023 : httpd, httpd-core, httpd-devel (ALAS2023-2026-3202)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-3202 advisory. Deployment of wrong handler vulnerability in Apache HTTP Server allows the target of some internal redirects from CGI programs to also be treated as CGI and executed. The target must already b...

EulerOS 2.0 SP11 : httpd (EulerOS-SA-2026-4327)

According to the versions of the httpd packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Buffer Underwrite vulnerability in Apache HTTP Server on crafted regular expressions in the configuration. This issue affects Apache HTTP Server:...

Important: httpd

Issue Overview: Deployment of wrong handler vulnerability in Apache HTTP Server allows the target of some internal redirects from CGI programs to also be treated as CGI and executed. The target must already be in a directory enabled for CGI and have no other extension understood by modmime. This...

Important: httpd

Issue Overview: Deployment of wrong handler vulnerability in Apache HTTP Server allows the target of some internal redirects from CGI programs to also be treated as CGI and executed. The target must already be in a directory enabled for CGI and have no other extension understood by modmime. This...

EulerOS 2.0 SP13 : mod_http2 (EulerOS-SA-2026-4072)

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 requests...

CentOS Linux 7 [TuxCare] Security Update: httpd / httpd-devel / httpd-manual / httpd-tools / mod_ldap / etc Multiple Vulnerabilities (CENTOS7:CLSA-2026:1791323880)

The CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS7:CLSA-2026:1791323880 advisory. - NULL Pointer Dereference vulnerability in Apache HTTP Servers modheartmonitor over unicast listener. This issue affects Apache HTTP...

EulerOS 2.0 SP11 : mod_http2 (EulerOS-SA-2026-4255)

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 requests...

EulerOS 2.0 SP11 : mod_http2 (EulerOS-SA-2026-4345)

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 requests...

EulerOS 2.0 SP13 : mod_http2 (EulerOS-SA-2026-4163)

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 requests...

Security Bulletin: Due to use of Apache Http Server, IBM Cloud Pak System is affected by HTTP Response splitting [CVE-2024-24795]

Summary HTTP Response splitting vulnerability has been identified in Apache HTTP Server. This vulnerability was addressed by IBM Cloud Pak System 2.3.6.2 Vulnerability Details CVEID:CVE-2024-24795 DESCRIPTION: HTTP Response splitting in multiple modules in Apache HTTP Server allows an attacker th...

CVE-2026-59797

A flaw was found in the modssl module of Apache HTTP Server. The SSLRequire directive does not properly restrict file-related expression functions in .htaccess files. An attacker who can write an .htaccess file in a directory where SSLRequire is permitted could use these functions to read files...

httpd bug fix and enhancement update

An update is available for httpd. This update affects Rocky Linux 10. 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...

RLSA-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...

mod_auth_openidc security update

An update is available for modauthopenidc. 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 modauthopenidc is an OpenID Connect authentication module for Apac...

CVE-2026-56154

A use-after-free flaw was found in the modrewrite module of Apache HTTP Server when evaluating URL lookahead expressions that reference HTTP request headers, such as %LA-U:HTTP:.... A remote attacker may be able to trigger invalid memory access in a server using an affected rewrite configuration,...