Total
321 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2024-38475 | 2 Apache, Netapp | 2 Http Server, Ontap 9 | 2025-05-02 | N/A | N/A |
| 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-2021-36160 | 6 Apache, Broadcom, Debian and 3 more | 13 Http Server, Brocade Fabric Operating System Firmware, Debian Linux and 10 more | 2025-05-01 | 5.0 MEDIUM | 7.5 HIGH |
| A carefully crafted request uri-path can cause mod_proxy_uwsgi to read above the allocated memory and crash (DoS). This issue affects Apache HTTP Server versions 2.4.30 to 2.4.48 (inclusive). | |||||
| CVE-2020-11993 | 7 Apache, Canonical, Debian and 4 more | 13 Http Server, Ubuntu Linux, Debian Linux and 10 more | 2025-05-01 | 4.3 MEDIUM | 7.5 HIGH |
| 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, logging statements were made on the wrong connection, causing concurrent use of memory pools. Configuring the LogLevel of mod_http2 above "info" will mitigate this vulnerability for unpatched servers. | |||||
| CVE-2021-33193 | 5 Apache, Debian, Fedoraproject and 2 more | 6 Http Server, Debian Linux, Fedora and 3 more | 2025-05-01 | 5.0 MEDIUM | 7.5 HIGH |
| A crafted method sent through HTTP/2 will bypass validation and be forwarded by mod_proxy, which can lead to request splitting or cache poisoning. This issue affects Apache HTTP Server 2.4.17 to 2.4.48. | |||||
| CVE-2021-39275 | 6 Apache, Debian, Fedoraproject and 3 more | 11 Http Server, Debian Linux, Fedora and 8 more | 2025-05-01 | 7.5 HIGH | 9.8 CRITICAL |
| ap_escape_quotes() may write beyond the end of a buffer when given malicious input. No included modules pass untrusted data to these functions, but third-party / external modules may. This issue affects Apache HTTP Server 2.4.48 and earlier. | |||||
| CVE-2021-44790 | 7 Apache, Apple, Debian and 4 more | 14 Http Server, Mac Os X, Macos and 11 more | 2025-05-01 | 7.5 HIGH | 9.8 CRITICAL |
| A carefully crafted request body can cause a buffer overflow in the mod_lua multipart parser (r:parsebody() called from Lua scripts). The Apache httpd team is not aware of an exploit for the vulnerabilty though it might be possible to craft one. This issue affects Apache HTTP Server 2.4.51 and earlier. | |||||
| CVE-2022-23943 | 4 Apache, Debian, Fedoraproject and 1 more | 5 Http Server, Debian Linux, Fedora and 2 more | 2025-05-01 | 7.5 HIGH | 9.8 CRITICAL |
| Out-of-bounds Write vulnerability in mod_sed of Apache HTTP Server allows an attacker to overwrite heap memory with possibly attacker provided data. This issue affects Apache HTTP Server 2.4 version 2.4.52 and prior versions. | |||||
| CVE-2022-31813 | 3 Apache, Fedoraproject, Netapp | 3 Http Server, Fedora, Clustered Data Ontap | 2025-05-01 | 7.5 HIGH | 9.8 CRITICAL |
| 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 may be used to bypass IP based authentication on the origin server/application. | |||||
| CVE-2022-28615 | 3 Apache, Fedoraproject, Netapp | 3 Http Server, Fedora, Clustered Data Ontap | 2025-05-01 | 6.4 MEDIUM | 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-2022-26377 | 3 Apache, Fedoraproject, Netapp | 3 Http Server, Fedora, Clustered Data Ontap | 2025-05-01 | 5.0 MEDIUM | 7.5 HIGH |
| Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') vulnerability in mod_proxy_ajp of Apache HTTP Server allows an attacker to smuggle requests to the AJP server it forwards requests to. This issue affects Apache HTTP Server Apache HTTP Server 2.4 version 2.4.53 and prior versions. | |||||
| CVE-2022-30556 | 3 Apache, Fedoraproject, Netapp | 3 Http Server, Fedora, Clustered Data Ontap | 2025-05-01 | 5.0 MEDIUM | 7.5 HIGH |
| 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 for the buffer. | |||||
| CVE-2023-27522 | 3 Apache, Debian, Unbit | 3 Http Server, Debian Linux, Uwsgi | 2025-05-01 | N/A | 7.5 HIGH |
| HTTP Response Smuggling vulnerability in Apache HTTP Server via mod_proxy_uwsgi. This issue affects Apache HTTP Server: from 2.4.30 through 2.4.55. Special characters in the origin response header can truncate/split the response forwarded to the client. | |||||
| CVE-1999-0236 | 2 Apache, Illinois | 2 Http Server, Ncsa Httpd | 2025-04-17 | 5.0 MEDIUM | 7.5 HIGH |
| ScriptAlias directory in NCSA and Apache httpd allowed attackers to read CGI programs. | |||||
| CVE-2022-37436 | 1 Apache | 1 Http Server | 2025-04-04 | N/A | 5.3 MEDIUM |
| Prior to Apache HTTP Server 2.4.55, a malicious backend can cause the response headers to be truncated early, resulting in some headers being incorporated into the response body. If the later headers have any security purpose, they will not be interpreted by the client. | |||||
| CVE-2022-36760 | 1 Apache | 1 Http Server | 2025-04-04 | N/A | 9.0 CRITICAL |
| Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') vulnerability in mod_proxy_ajp of Apache HTTP Server allows an attacker to smuggle requests to the AJP server it forwards requests to. This issue affects Apache HTTP Server Apache HTTP Server 2.4 version 2.4.54 and prior versions. | |||||
| CVE-2019-0211 | 8 Apache, Canonical, Debian and 5 more | 27 Http Server, Ubuntu Linux, Debian Linux and 24 more | 2025-04-04 | 7.2 HIGH | 7.8 HIGH |
| 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 threads (including scripts executed by an in-process scripting interpreter) could execute arbitrary code with the privileges of the parent process (usually root) by manipulating the scoreboard. Non-Unix systems are not affected. | |||||
| CVE-2024-38474 | 2 Apache, Netapp | 2 Http Server, Clustered Data Ontap | 2025-03-25 | N/A | 9.8 CRITICAL |
| Substitution encoding issue in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows attacker to execute scripts in directories permitted by the configuration but not directly reachable by any URL or source disclosure of scripts meant to only to be executed as CGI. Users are recommended to upgrade to version 2.4.60, which fixes this issue. Some RewriteRules that capture and substitute unsafely will now fail unless rewrite flag "UnsafeAllow3F" is specified. | |||||
| CVE-2021-41773 | 4 Apache, Fedoraproject, Netapp and 1 more | 4 Http Server, Fedora, Cloud Backup and 1 more | 2025-03-21 | 4.3 MEDIUM | 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-2021-42013 | 4 Apache, Fedoraproject, Netapp and 1 more | 6 Http Server, Fedora, Cloud Backup and 3 more | 2025-03-21 | 7.5 HIGH | 9.8 CRITICAL |
| It was found that the fix for CVE-2021-41773 in Apache HTTP Server 2.4.50 was insufficient. 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 only affects Apache 2.4.49 and Apache 2.4.50 and not earlier versions. | |||||
| CVE-2024-38477 | 2 Apache, Netapp | 2 Http Server, Clustered Data Ontap | 2025-03-18 | N/A | 7.5 HIGH |
| null pointer dereference in mod_proxy in Apache HTTP Server 2.4.59 and earlier allows an attacker to crash the server via a malicious request. Users are recommended to upgrade to version 2.4.60, which fixes this issue. | |||||