KLA91086 Multiple vulnerabilities in Apache HTTP Server

Multiple vulnerabilities were found in Apache HTTP Server. Malicious users can exploit these vulnerabilities to bypass security restrictions, cause denial of service, execute arbitrary code. Below is a complete list of vulnerabilities: 1. A remote code execution vulnerability in modldap can be...

CVE-2026-48913: Use After Free

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-2026-44631: Buffer Underwrite

Buffer Underwrite vulnerability in Apache HTTP Server on crafted regular expressions in the 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-2026-44186: Loop with Unreachable Exit Condition

Loop with Unreachable Exit Condition 'Infinite Loop' vulnerability in the modproxyftp module in Apache HTTP Server with an attacker controlled backend FTP server. This issue affects undefined: from 2.4.0 through 2.4.67. Users are recommended to upgrade to version 2.4.68, which fixes the issue...

CVE-2026-44185: Buffer Over-read

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...

CVE-2026-44119: Improper Privilege Management

Improper Privilege Management vulnerability in Apache HTTP Server 2.4.67 and earlier allows local .htaccess authors to read files with the privileges of the httpd user. This issue affects Apache HTTP Server: from through 2.4.67. Users are recommended to upgrade to version 2.4.68, which fixes the...

CVE-2026-43951: Out-of-bounds Read

Out-of-bounds Read vulnerability in Apache HTTP Server with modheaders and modmime and multiple response languages. This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67...

CVE-2026-42536: Heap-based Buffer Overflow

Heap-based Buffer Overflow vulnerability in Apache HTTP Server with modxml2enc, xml2StartParse, and untrusted content 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-2026-34356: Heap-based Buffer Overflow

Heap-based Buffer Overflow vulnerability in Apache HTTP Server with malicious backend servers and ProxyPassReverseCookie 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-2026-34355: Heap-based Buffer Overflow

A buffer overflow in modproxyhtml in Apache HTTP Server 2.4.67 and earlier allows an attack by an untrusted backend. Users are recommended to upgrade to version 2.4.68, which fixes this issue...

CVE-2026-29170: Improper Neutralization of Input During Web Page Generation

A cross-site scripting vulnerability exists in modproxyftp's HTML directory list generation in Apache HTTP Server 2.4.67 and earlier when listing FTP directory contents either via forward or reverse proxy configuration. Users are recommended to upgrade to version 2.4.68, which fixes this issue...

CVE-2026-49975: Memory Allocation with Excessive Size Value

Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's modhttp leads to denial of service via malicious HTTP requests. This issue affects Apache HTTP Server: from 2.4.17 through 2.4.67...

CVE-2026-29167: Use After Free

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...

Slackware Linux 15.0 / current httpd Vulnerability (SSA:2026-154-01)

The version of httpd installed on the remote host is prior to 2.4.67. It is, therefore, affected by a vulnerability as referenced in the SSA:2026-154-01 advisory. New httpd packages are available for Slackware 15.0 and -current to fix a security issue. Tenable has extracted the preceding...

Ubuntu 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS : Apache HTTP Server vulnerability (USN-8384-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-8384-1 advisory. It was discovered that Apache HTTP Server incorrectly handled certain cookie headers in the HTTP/2 implementation. A remote attack...

RLSA-2026:21433 Important: httpd security update

The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server. Security Fixes: httpd: modproxyajp: heap-based buffer over-read and memory disclosure in ajpparsedata CVE-2026-34059 httpd: modproxyajp: heap-based buffer over-read due to missing null-termination...

The vulnerability of the HTTP/2 header processing module in the Apache HTTP Server allows a attacker to cause a service failure.

The vulnerability of the HTTP/2 header processing module in the Apache HTTP Server is related to the unlimited distribution of resources. Exploiting this vulnerability can allow a remote attacker to cause service interruptions...

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...

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...

CVE-2026-49975

Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's modhttp leads to denial of service via malicious HTTP requests. This issue affects Apache HTTP Server: from 2.4.17 through 2.4.67...