httpd: Apache HTTP Server: Buffer overflow in mod_proxy_html allows security bypass

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...

httpd: Apache HTTP Server: Out-of-bounds Read in mod_headers and mod_mime

A flaw was found in Apache HTTP Server. An out-of-bounds read vulnerability exists when modheaders and modmime are used with multiple response languages. This could allow a remote attacker to disclose sensitive information from memory or cause a denial of service...

httpd: Apache HTTP Server: Buffer Over-read via outbound OCSP requests to attacker-controlled server

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...

httpd: Apache HTTP Server: Denial of Service in mod_proxy_ftp via attacker-controlled FTP server

A flaw was found in the modproxyftp module of the Apache HTTP Server. A remote attacker, by controlling a backend File Transfer Protocol FTP server, can trigger an infinite loop. This vulnerability, categorized as a Loop with Unreachable Exit Condition, leads to a Denial of Service DoS for the...

httpd: Apache HTTP Server: Heap-based Buffer Overflow via malicious backend servers

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...

httpd: Apache HTTP Server: Arbitrary code execution or denial of service via use-after-free in mod_ldap per-directory configuration

A flaw was found in Apache HTTP Server when using the modldap module in a per-directory configuration. This use-after-free vulnerability allows a remote attacker to potentially execute arbitrary code or cause a denial of service DoS due to improper memory handling. This could lead to system...

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...

httpd: Apache HTTP Server: Denial of Service via crafted regular expressions

A flaw was found in Apache HTTP Server. This buffer underwrite vulnerability occurs when processing crafted regular expressions in the server's configuration. An attacker could potentially exploit this to cause a denial of service...

RHEL 9 : httpd (RHSA-2026:67152)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:67152 advisory. The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server. Security Fixes: httpd: incomplete fix...

Exploit for Classic Buffer Overflow in Apache Http_Server

CVE-2026-42536: Apache HTTP Server modxml2enc Heap Overflow...

Unity Linux 20.1050e / 20.1060e / 20.1070-8ae / 20.1070e Security Update: httpd (UTSA-2023-003828)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2023-003828 advisory. A carefully crafted request body can cause a read to a random memory area which could cause the process to crash. This issue affects Apache HTTP Server 2.4.52 and...

Unity Linux 20.1050e / 20.1060e / 20.1070-8ae / 20.1070e Security Update: httpd (UTSA-2023-003824)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2023-003824 advisory. Inconsistent Interpretation of HTTP Requests 'HTTP Request Smuggling' vulnerability in modproxyajp of Apache HTTP Server allows an attacker to smuggle requests to th...

Unity Linux 20.1050e / 20.1060e / 20.1070-8ae / 20.1070e Security Update: httpd (UTSA-2023-003819)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2023-003819 advisory. Apache HTTP Server 2.4.53 and earlier may not send the X-Forwarded- headers to the origin server based on client side Connection header hop-by-hop mechanism. This ma...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: httpd (UTSA-2023-003823)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2023-003823 advisory. Apache HTTP Server 2.4.53 and earlier on Windows may read beyond bounds when configured to process requests with the modisapi module. Tenable has extracted the...

USN-8571-2: Apache HTTP Server regression

USN-8571-1 fixed vulnerabilities in Apache HTTP Server. That fix was incomplete due to a missing library symbol, resulting in a regression that could cause Apache HTTP Server to fail to start when HTTP/2 proxying was enabled. This update fixes the problem. We apologize for the inconvenience...

httpd: Apache HTTP Server: Arbitrary code execution or denial of service via use-after-free in mod_ldap per-directory configuration

A flaw was found in Apache HTTP Server when using the modldap module in a per-directory configuration. This use-after-free vulnerability allows a remote attacker to potentially execute arbitrary code or cause a denial of service DoS due to improper memory handling. This could lead to system...

httpd: Apache HTTP Server: Denial of Service in mod_proxy_ftp via attacker-controlled FTP server

A flaw was found in the modproxyftp module of the Apache HTTP Server. A remote attacker, by controlling a backend File Transfer Protocol FTP server, can trigger an infinite loop. This vulnerability, categorized as a Loop with Unreachable Exit Condition, leads to a Denial of Service DoS for the...

Important: Red Hat Security Advisory: httpd security update

An update for httpd is now available for Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions. 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...

httpd: Apache HTTP Server: Buffer Over-read via outbound OCSP requests to attacker-controlled server

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...

httpd: Apache HTTP Server: Heap-based Buffer Overflow via malicious backend servers

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...