CVE-2016-8740high · CVSS 7.5 — The mod_http2 module in the Apache HTTP Server 2.4.17 through 2.4.23, when the Protocols configuration includes h2 or h2c, does not restrict
CVE-2017-3169critical · CVSS 9.8 — In Apache httpd 2.2.x before 2.2.33 and 2.4.x before 2.4.26, mod_ssl may dereference a NULL pointer when third-party modules call ap_hook_pr
CVE-2016-0736high · CVSS 7.5 — In Apache HTTP Server versions 2.4.0 to 2.4.23, mod_session_crypto was encrypting its data/cookie using the configured ciphers with possibly
CVE-2016-2161high · CVSS 7.5 — In Apache HTTP Server versions 2.4.0 to 2.4.23, malicious input to mod_auth_digest can cause the server to crash, and each instance continue
CVE-2017-9798high · CVSS 7.5 — Apache httpd allows remote attackers to read secret data from process memory if the Limit directive can be set in a user's .htaccess file, o
CVE-2017-15710high · CVSS 7.5 — In Apache httpd 2.0.23 to 2.0.65, 2.2.0 to 2.2.34, and 2.4.0 to 2.4.29, mod_authnz_ldap, if configured with AuthLDAPCharsetConfig, uses the
CVE-2018-1312critical · CVSS 9.8 — In Apache httpd 2.2.0 to 2.4.29, when generating an HTTP Digest authentication challenge, the nonce sent to prevent reply attacks was not co
CVE-2018-1333high · CVSS 7.5 — By specially crafting HTTP/2 requests, workers would be allocated 60 seconds longer than necessary, leading to worker exhaustion and a denia
CVE-2016-4975medium · CVSS 6.1 — Possible CRLF injection allowing HTTP response splitting attacks for sites which use mod_userdir. This issue was mitigated by changes made i
CVE-2018-11763medium · CVSS 5.9 — In Apache HTTP Server 2.4.17 to 2.4.34, by sending continuous, large SETTINGS frames a client can occupy a connection, server thread and CPU
CVE-2018-17189medium · CVSS 5.3 — In Apache HTTP server versions 2.4.37 and prior, by sending request bodies in a slow loris way to plain resources, the h2 stream for that re
CVE-2018-17199high · CVSS 7.5 — In Apache HTTP Server 2.4 release 2.4.37 and prior, mod_session checks the session expiry time before decoding the session. This causes sess
CVE-2019-0217high · CVSS 7.5 — In Apache HTTP Server 2.4 release 2.4.38 and prior, a race condition in mod_auth_digest when running in a threaded server could allow a user
CVE-2019-0211high · CVSS 7.8 — In Apache HTTP Server 2.4 releases 2.4.17 to 2.4.38, with MPM event, worker or prefork, code executing in less-privileged child processes or
CVE-2019-0220medium · CVSS 5.3 — A vulnerability was found in Apache HTTP Server 2.4.0 to 2.4.38. When the path component of a request URL contains multiple consecutive slas
CVE-2019-0196medium · CVSS 5.3 — A vulnerability was found in Apache HTTP Server 2.4.17 to 2.4.38. Using fuzzed network input, the http/2 request handling could be made to a
CVE-2019-9517high · CVSS 7.5 — Some HTTP/2 implementations are vulnerable to unconstrained interal data buffering, potentially leading to a denial of service. The attacker
CVE-2019-10081high · CVSS 7.5 — HTTP/2 (2.4.20 through 2.4.39) very early pushes, for example configured with "H2PushResource", could lead to an overwrite of memory in the
CVE-2019-10098medium · CVSS 6.1 — In Apache HTTP server 2.4.0 to 2.4.39, Redirects configured with mod_rewrite that were intended to be self-referential might be fooled by en
CVE-2019-10082critical · CVSS 9.1 — In Apache HTTP Server 2.4.18-2.4.39, using fuzzed network input, the http/2 session handling could be made to read memory after being freed,
CVE-2019-10092medium · CVSS 6.1 — In Apache HTTP Server 2.4.0-2.4.39, a limited cross-site scripting issue was reported affecting the mod_proxy error page. An attacker could
CVE-2020-1934medium · CVSS 5.3 — In Apache HTTP Server 2.4.0 to 2.4.41, mod_proxy_ftp may use uninitialized memory when proxying to a malicious FTP server.
CVE-2020-1927medium · CVSS 6.1 — In Apache HTTP Server 2.4.0 to 2.4.41, redirects configured with mod_rewrite that were intended to be self-referential might be fooled by en
CVE-2020-11985medium · CVSS 5.3 — IP address spoofing when proxying using mod_remoteip and mod_rewrite For configurations using proxying with mod_remoteip and certain mod_rew
CVE-2020-11993high · CVSS 7.5 — Apache HTTP Server versions 2.4.20 to 2.4.43 When trace/debug was enabled for the HTTP/2 module and on certain traffic edge patterns, loggin
CVE-2020-9490high · CVSS 7.5 — Apache HTTP Server versions 2.4.20 to 2.4.43. A specially crafted value for the 'Cache-Digest' header in a HTTP/2 request would result in a
CVE-2019-17567medium · CVSS 5.3 — Apache HTTP Server versions 2.4.6 to 2.4.46 mod_proxy_wstunnel configured on an URL that is not necessarily Upgraded by the origin server wa
CVE-2020-13938medium · CVSS 5.5 — Apache HTTP Server versions 2.4.0 to 2.4.46 Unprivileged local users can stop httpd on Windows
CVE-2020-35452high · CVSS 7.3 — Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Digest nonce can cause a stack overflow in mod_auth_digest. There is no repo
CVE-2021-26690high · CVSS 7.5 — Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Cookie header handled by mod_session can cause a NULL pointer dereference an
CVE-2021-26691critical · CVSS 9.8 — In Apache HTTP Server versions 2.4.0 to 2.4.46 a specially crafted SessionHeader sent by an origin server could cause a heap overflow
CVE-2021-33193high · CVSS 7.5 — A crafted method sent through HTTP/2 will bypass validation and be forwarded by mod_proxy, which can lead to request splitting or cache pois
CVE-2021-34798high · CVSS 7.5 — Malformed requests may cause the server to dereference a NULL pointer. This issue affects Apache HTTP Server 2.4.48 and earlier.
CVE-2021-39275critical · CVSS 9.8 — ap_escape_quotes() may write beyond the end of a buffer when given malicious input. No included modules pass untrusted data to these functio
CVE-2021-40438critical · CVSS 9.0 — A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user. This issue affects Apa
CVE-2021-44224high · CVSS 8.2 — A crafted URI sent to httpd configured as a forward proxy (ProxyRequests on) can cause a crash (NULL pointer dereference) or, for configurat
CVE-2021-44790critical · CVSS 9.8 — A carefully crafted request body can cause a buffer overflow in the mod_lua multipart parser (r:parsebody() called from Lua scripts). The Ap
CVE-2022-22719high · CVSS 7.5 — 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
CVE-2022-22720critical · CVSS 9.8 — Apache HTTP Server 2.4.52 and earlier fails to close inbound connection when errors are encountered discarding the request body, exposing th
CVE-2022-22721critical · CVSS 9.1 — If LimitXMLRequestBody is set to allow request bodies larger than 350MB (defaults to 1M) on 32 bit systems an integer overflow happens which
CVE-2022-23943critical · CVSS 9.8 — Out-of-bounds Write vulnerability in mod_sed of Apache HTTP Server allows an attacker to overwrite heap memory with possibly attacker provid
CVE-2022-26377high · CVSS 7.5 — Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') vulnerability in mod_proxy_ajp of Apache HTTP Server allows an attac
CVE-2022-28330medium · CVSS 5.3 — Apache HTTP Server 2.4.53 and earlier on Windows may read beyond bounds when configured to process requests with the mod_isapi module.
CVE-2022-28614medium · CVSS 5.3 — The ap_rwrite() function in Apache HTTP Server 2.4.53 and earlier may read unintended memory if an attacker can cause the server to reflect
CVE-2022-28615critical · CVSS 9.1 — 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
CVE-2022-29404high · CVSS 7.5 — In Apache HTTP Server 2.4.53 and earlier, a malicious request to a lua script that calls r:parsebody(0) may cause a denial of service due to
CVE-2022-30556high · CVSS 7.5 — Apache HTTP Server 2.4.53 and earlier may return lengths to applications calling r:wsread() that point past the end of the storage allocated
CVE-2022-31813critical · CVSS 9.8 — 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
CVE-2006-20001high · CVSS 7.5 — A carefully crafted If: request header can cause a memory read, or write of a single zero byte, in a pool (heap) memory location beyond the
CVE-2022-36760critical · CVSS 9.0 — Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') vulnerability in mod_proxy_ajp of Apache HTTP Server allows an attac