Apache2 - Transfer-Encoding Chunked XSS

Apache2 PHP before 5.6.38, 7.0.x before 7.0.32, 7.1.x before 7.1.22, and 7.2.x before 7.2.10 contain a reflected cross-site scripting vulnerability caused by mishandling of chunked transfer-encoding requests in sapi/apache2handler/sapiapache2.c. Attackers can execute malicious scripts via crafted...

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...

Astra Linux – Vulnerability in Apache2

Apache HTTP Server versions 2.4.0 to 2.4.46: A specially crafted Digest nonce can cause a stack overflow in modauthdigest. There is no report of this overflow being exploitable, nor can the Apache HTTP Server team have created such a report. However, certain compilers and/or compilation options...

Astra Linux – Vulnerability in Apache2

In some modssl configurations of the Apache HTTP Server, from versions up to 2.4.63, an HTTP desynchronization attack allows a man-in-the-middle attacker to hijack an HTTP session through a TLS upgrade. Only configurations that use “SSLEngine optional” to enable TLS upgrades are affected. Users a...

Astra Linux – Vulnerability in Apache2

If the Apache HTTP Server 2.4.53 is configured to perform transformations using modsed, especially in contexts where the input to modsed can be very large, modsed may cause excessive memory allocation and trigger an abort...

Astra Linux – Vulnerability in Apache2

An attacker who establishes an HTTP/2 connection with an initial window size of 0 was able to indefinitely block the handling of that connection in Apache HTTP Server. This could be used to exhaust server resources, similar to the well-known “slow loris” attack pattern. This issue has been fixed ...

[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...

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...

BIT-APACHE-2026-43951 Apache HTTP Server: OOB Read in `merge_response_headers` can cause crash

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...

BIT-APACHE-2026-42535 Apache HTTP Server: mod_dav_fs protected directory access

A path handling issue in moddavfs in Apache 2.4.67 and earlier allows a WebDAV content author to directly manipulate trusted DAV property databases, potentially causing child process crashes. Users are recommended to upgrade to version 2.4.68, which fixes this issue...

BIT-APACHE-2026-34355 Apache HTTP Server: mod_proxy_html 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...

SUSE CVE-2026-34355

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...

SUSE CVE-2026-44185

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...

SUSE CVE-2026-44631

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...

SUSE CVE-2026-48913

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...