Filtered by vendor Apache Subscriptions
Filtered by product Http Server Subscriptions
Total 349 CVE
CVE Vendors Products Updated CVSS v3.1
CVE-1999-0045 2 Apache, Netscape 4 Http Server, Commerce Server, Communications Server and 1 more 2026-04-16 N/A
List of arbitrary files on Web host via nph-test-cgi script.
CVE-2002-2272 1 Apache 2 Http Server, Tomcat 2026-04-16 N/A
Tomcat 4.0 through 4.1.12, using mod_jk 1.2.1 module on Apache 1.3 through 1.3.27, allows remote attackers to cause a denial of service (desynchronized communications) via an HTTP GET request with a Transfer-Encoding chunked field with invalid values.
CVE-2006-3918 4 Apache, Canonical, Debian and 1 more 9 Http Server, Ubuntu Linux, Debian Linux and 6 more 2026-04-16 N/A
http_protocol.c in (1) IBM HTTP Server 6.0 before 6.0.2.13 and 6.1 before 6.1.0.1, and (2) Apache HTTP Server 1.3 before 1.3.35, 2.0 before 2.0.58, and 2.2 before 2.2.2, does not sanitize the Expect header from an HTTP request when it is reflected back in an error message, which might allow cross-site scripting (XSS) style attacks using web client components that can send arbitrary headers in requests, as demonstrated using a Flash SWF file.
CVE-1999-0678 2 Apache, Debian 2 Http Server, Debian Linux 2026-04-16 N/A
A default configuration of Apache on Debian GNU/Linux sets the ServerRoot to /usr/doc, which allows remote users to read documentation files for the entire server.
CVE-1999-1053 2 Apache, Matt Wright 2 Http Server, Matt Wright Guestbook 2026-04-16 N/A
guestbook.pl cleanses user-inserted SSI commands by removing text between "<!--" and "-->" separators, which allows remote attackers to execute arbitrary commands when guestbook.pl is run on Apache 1.3.9 and possibly other versions, since Apache allows other closing sequences besides "-->".
CVE-2000-0505 2 Apache, Ibm 2 Http Server, Http Server 2026-04-16 N/A
The Apache 1.3.x HTTP server for Windows platforms allows remote attackers to list directory contents by requesting a URL containing a large number of / characters.
CVE-2000-0869 2 Apache, Suse 2 Http Server, Suse Linux 2026-04-16 N/A
The default configuration of Apache 1.3.12 in SuSE Linux 6.4 enables WebDAV, which allows remote attackers to list arbitrary directories via the PROPFIND HTTP request method.
CVE-2002-1233 1 Apache 1 Http Server 2026-04-16 N/A
A regression error in the Debian distributions of the apache-ssl package (before 1.3.9 on Debian 2.2, and before 1.3.26 on Debian 3.0), for Apache 1.3.27 and earlier, allows local users to read or modify the Apache password file via a symlink attack on temporary files when the administrator runs (1) htpasswd or (2) htdigest, a re-introduction of a vulnerability that was originally identified and addressed by CVE-2001-0131.
CVE-2025-23048 2 Apache, Apache Software Foundation 2 Http Server, Apache Http Server 2026-02-26 9.1 Critical
In some mod_ssl configurations on Apache HTTP Server 2.4.35 through to 2.4.63, an access control bypass by trusted clients is possible using TLS 1.3 session resumption. Configurations are affected when mod_ssl is configured for multiple virtual hosts, with each restricted to a different set of trusted client certificates (for example with a different SSLCACertificateFile/Path setting). In such a case, a client trusted to access one virtual host may be able to access another virtual host, if SSLStrictSNIVHostCheck is not enabled in either virtual host.
CVE-2025-58098 1 Apache 1 Http Server 2026-02-26 8.3 High
Apache HTTP Server 2.4.65 and earlier with Server Side Includes (SSI) enabled and mod_cgid (but not mod_cgi) passes the shell-escaped query string to #exec cmd="..." directives. This issue affects Apache HTTP Server before 2.4.66. Users are recommended to upgrade to version 2.4.66, which fixes the issue.
CVE-2021-41773 4 Apache, Fedoraproject, Netapp and 1 more 4 Http Server, Fedora, Cloud Backup and 1 more 2026-02-17 7.5 High
A flaw was found in a change made to path normalization in Apache HTTP Server 2.4.49. An attacker could use a path traversal attack to map URLs to files outside the directories configured by Alias-like directives. If files outside of these directories are not protected by the usual default configuration "require all denied", these requests can succeed. If CGI scripts are also enabled for these aliased pathes, this could allow for remote code execution. This issue is known to be exploited in the wild. This issue only affects Apache 2.4.49 and not earlier versions. The fix in Apache HTTP Server 2.4.50 was found to be incomplete, see CVE-2021-42013.
CVE-2023-25690 2 Apache, Redhat 8 Http Server, Enterprise Linux, Jboss Core Services and 5 more 2025-12-18 9.8 Critical
Some mod_proxy configurations on Apache HTTP Server versions 2.4.0 through 2.4.55 allow a HTTP Request Smuggling attack. Configurations are affected when mod_proxy is enabled along with some form of RewriteRule or ProxyPassMatch in which a non-specific pattern matches some portion of the user-supplied request-target (URL) data and is then re-inserted into the proxied request-target using variable substitution. For example, something like: RewriteEngine on RewriteRule "^/here/(.*)" "http://example.com:8080/elsewhere?$1"; [P] ProxyPassReverse /here/ http://example.com:8080/ Request splitting/smuggling could result in bypass of access controls in the proxy server, proxying unintended URLs to existing origin servers, and cache poisoning. Users are recommended to update to at least version 2.4.56 of Apache HTTP Server.
CVE-2022-28615 4 Apache, Fedoraproject, Netapp and 1 more 6 Http Server, Fedora, Clustered Data Ontap and 3 more 2025-12-18 9.1 Critical
Apache HTTP Server 2.4.53 and earlier may crash or disclose information due to a read beyond bounds in ap_strcmp_match() when provided with an extremely large input buffer. While no code distributed with the server can be coerced into such a call, third-party modules or lua scripts that use ap_strcmp_match() may hypothetically be affected.
CVE-2025-59775 2 Apache, Microsoft 2 Http Server, Windows 2025-12-10 7.5 High
Server-Side Request Forgery (SSRF) vulnerability  in Apache HTTP Server on Windows with AllowEncodedSlashes On and MergeSlashes Off  allows to potentially leak NTLM hashes to a malicious server via SSRF and malicious requests or content Users are recommended to upgrade to version 2.4.66, which fixes the issue.
CVE-2025-65082 1 Apache 1 Http Server 2025-12-10 6.5 Medium
Improper Neutralization of Escape, Meta, or Control Sequences vulnerability in Apache HTTP Server through environment variables set via the Apache configuration unexpectedly superseding variables calculated by the server for CGI programs. This issue affects Apache HTTP Server from 2.4.0 through 2.4.65. Users are recommended to upgrade to version 2.4.66 which fixes the issue.
CVE-2025-66200 1 Apache 1 Http Server 2025-12-10 5.4 Medium
mod_userdir+suexec bypass via AllowOverride FileInfo vulnerability in Apache HTTP Server. Users with access to use the RequestHeader directive in htaccess can cause some CGI scripts to run under an unexpected userid. This issue affects Apache HTTP Server: from 2.4.7 through 2.4.65. Users are recommended to upgrade to version 2.4.66, which fixes the issue.
CVE-2025-55753 1 Apache 1 Http Server 2025-12-10 7.5 High
An integer overflow in the case of failed ACME certificate renewal leads, after a number of failures (~30 days in default configurations), to the backoff timer becoming 0. Attempts to renew the certificate then are repeated without delays until it succeeds. This issue affects Apache HTTP Server: from 2.4.30 before 2.4.66. Users are recommended to upgrade to version 2.4.66, which fixes the issue.
CVE-2024-38475 4 Apache, Netapp, Redhat and 1 more 19 Http Server, Ontap 9, Enterprise Linux and 16 more 2025-11-18 9.1 Critical
Improper escaping of output in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to map URLs to filesystem locations that are permitted to be served by the server but are not intentionally/directly reachable by any URL, resulting in code execution or source code disclosure. Substitutions in server context that use a backreferences or variables as the first segment of the substitution are affected.  Some unsafe RewiteRules will be broken by this change and the rewrite flag "UnsafePrefixStat" can be used to opt back in once ensuring the substitution is appropriately constrained.
CVE-2025-3891 3 Apache, Debian, Redhat 7 Http Server, Debian Linux, Enterprise Linux and 4 more 2025-11-11 7.5 High
A flaw was found in the mod_auth_openidc module for Apache httpd. This flaw allows a remote, unauthenticated attacker to trigger a denial of service by sending an empty POST request when the OIDCPreservePost directive is enabled. The server crashes consistently, affecting availability.
CVE-2024-36387 3 Apache, Netapp, Redhat 4 Http Server, Ontap, Enterprise Linux and 1 more 2025-11-07 5.4 Medium
Serving WebSocket protocol upgrades over a HTTP/2 connection could result in a Null Pointer dereference, leading to a crash of the server process, degrading performance.