K000162006: Apache HTTP Server vulnerability CVE-2026-33857

Security Advisory Description Out-of-bounds Read vulnerability in modproxyajp of 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-2026-33857 Impact There is no impact; F5 products are not...

[SECURITY] Fedora 43 Update: httpd-2.4.68-1.fc43

The Apache HTTP Server is a powerful, efficient, and extensible web server...

OESA-2026-2744 httpd security update

Apache HTTP Server is a powerful and flexible HTTP/1.1 compliant web server. Security Fixes: Use After Free vulnerability in Apache HTTP Server with modldap in per-directory configuration This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to upgrade to version...

OESA-2026-2747 httpd security update

Apache HTTP Server is a powerful and flexible HTTP/1.1 compliant web server. Security Fixes: Use After Free vulnerability in Apache HTTP Server with modldap in per-directory configuration This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to upgrade to version...

OESA-2026-2745 httpd security update

Apache HTTP Server is a powerful and flexible HTTP/1.1 compliant web server. Security Fixes: Use After Free vulnerability in Apache HTTP Server with modldap in per-directory configuration This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to upgrade to version...

OESA-2026-2746 httpd security update

Apache HTTP Server is a powerful and flexible HTTP/1.1 compliant web server. Security Fixes: Use After Free vulnerability in Apache HTTP Server with modldap in per-directory configuration This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to upgrade to version...

Apache HTTP Server: mod_proxy_ajp: Apache HTTP Server mod_proxy_ajp: Arbitrary code execution via heap-based buffer overflow

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...

Important: Red Hat Security Advisory: Red Hat JBoss Core Services Apache HTTP Server 2.4.62 SP4 security update

Red Hat JBoss Core Services Apache HTTP Server 2.4.62 Service Pack 4 is now available. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each...

Medium: httpd

Issue Overview: Use After Free vulnerability in Apache HTTP Server with modldap in per-directory configuration 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. CVE-2026-29167 A cross-site scripting...

Amazon Linux 2023 : httpd, httpd-core, httpd-devel (ALAS2023-2026-1880)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1880 advisory. Use After Free vulnerability in Apache HTTP Server with modldap in per-directory configuration This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to upgrad...

Important: mod_http2

Issue Overview: Use After Free vulnerability in Apache HTTP Server module modhttp2 when file handles are already exhausted. This issue affects Apache HTTP Server: from 2.4.55 through 2.4.67. CVE-2026-48913 Denial of service in HTTP/2 cookie request header counting CVE-2026-49975 Affected Packages...

Amazon Linux 2023 : mod_http2 (ALAS2023-2026-1859)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1859 advisory. Use After Free vulnerability in Apache HTTP Server module modhttp2 when file handles are already exhausted. This issue affects Apache HTTP Server: from 2.4.55 through 2.4.67. CVE-2026-48913...

Amazon Linux 2 : httpd, --advisory ALAS2-2026-3379 (ALAS-2026-3379)

The version of httpd installed on the remote host is prior to 2.4.68-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3379 advisory. Use After Free vulnerability in Apache HTTP Server with modldap in per-directory configuration This issue affects Apache HT...

RHEL 7 / 8 : Red Hat JBoss Core Services Apache HTTP Server 2.4.62 SP4 (RHSA-2026:27200)

The remote Redhat Enterprise Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:27200 advisory. Red Hat JBoss Core Services is a set of supplementary software for Red Hat JBoss middleware products. This software, such as Apache HTT...

CVE-2026-34356

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. Mitigation To...

CVE-2026-44185

A flaw was found in Apache HTTP Server. This buffer over-read vulnerability occurs when the server processes outbound Online Certificate Status Protocol OCSP requests directed to an attacker-controlled OCSP server. This could allow a remote attacker to read sensitive information from memory or...

CVE-2026-42536

A flaw was found in Apache HTTP Server, specifically within the modxml2enc module. This heap-based buffer overflow vulnerability can be triggered when processing untrusted content through the xml2StartParse function. A remote attacker could potentially exploit this to cause a denial of service,...

CVE-2026-34355

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. Mitigation Disable the modproxyhtml module if...

Exploit for Memory Allocation with Excessive Size Value in Apache Http_Server

CVE-2026-49975 HTTP/2 Bomb ★ CVE-2026-49975 HTTP/2 Bomb PoC ★...

httpd:2.4 security update

httpd 2.4.37-65.0.1.8 - Replace index.html with Oracle's index page oracleindex.html 2.4.37-65.8 - Resolves: RHEL-173558 - httpd:2.4/httpd: Apache HTTP Server modproxyajp: Arbitrary code execution via heap-based buffer overflow CVE-2026-28780 - Resolves: RHEL-175074 - httpd:2.4/httpd: NULL pointe...