Filtered by vendor Apache
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Filtered by product Http Server
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Total
327 CVE
| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2025-65082 | 1 Apache | 1 Http Server | 2025-12-05 | 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 | 2025-12-05 | 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-2025-59775 | 2 Apache, Microsoft | 2 Http Server, Windows | 2025-12-05 | 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-2025-55753 | 1 Apache | 1 Http Server | 2025-12-05 | 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-2025-58098 | 1 Apache | 1 Http Server | 2025-12-05 | 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-2024-38475 | 4 Apache, Netapp, Redhat and 1 more | 19 Http Server, Ontap 9, Enterprise Linux and 16 more | 2025-11-17 | 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 | 2025-11-06 | 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. | ||||
| CVE-2025-54090 | 1 Apache | 1 Http Server | 2025-11-04 | 6.3 Medium |
| A bug in Apache HTTP Server 2.4.64 results in all "RewriteCond expr ..." tests evaluating as "true". Users are recommended to upgrade to version 2.4.65, which fixes the issue. | ||||
| CVE-2025-53020 | 1 Apache | 2 Apache Http Server, Http Server | 2025-11-04 | 7.5 High |
| Late Release of Memory after Effective Lifetime vulnerability in Apache HTTP Server. This issue affects Apache HTTP Server: from 2.4.17 up to 2.4.63. Users are recommended to upgrade to version 2.4.64, which fixes the issue. | ||||
| CVE-2025-49812 | 2 Apache, Apache Software Foundation | 2 Http Server, Apache Http Server | 2025-11-04 | 7.4 High |
| In some mod_ssl configurations on Apache HTTP Server versions through to 2.4.63, an HTTP desynchronisation attack allows a man-in-the-middle attacker to hijack an HTTP session via a TLS upgrade. Only configurations using "SSLEngine optional" to enable TLS upgrades are affected. Users are recommended to upgrade to version 2.4.64, which removes support for TLS upgrade. | ||||
| CVE-2025-49630 | 1 Apache | 2 Apache Http Server, Http Server | 2025-11-04 | 7.5 High |
| In certain proxy configurations, a denial of service attack against Apache HTTP Server versions 2.4.26 through to 2.4.63 can be triggered by untrusted clients causing an assertion in mod_proxy_http2. Configurations affected are a reverse proxy is configured for an HTTP/2 backend, with ProxyPreserveHost set to "on". | ||||
| CVE-2025-23048 | 2 Apache, Apache Software Foundation | 2 Http Server, Apache Http Server | 2025-11-04 | 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-2024-47252 | 1 Apache | 2 Apache Http Server, Http Server | 2025-11-04 | 7.5 High |
| Insufficient escaping of user-supplied data in mod_ssl in Apache HTTP Server 2.4.63 and earlier allows an untrusted SSL/TLS client to insert escape characters into log files in some configurations. In a logging configuration where CustomLog is used with "%{varname}x" or "%{varname}c" to log variables provided by mod_ssl such as SSL_TLS_SNI, no escaping is performed by either mod_log_config or mod_ssl and unsanitized data provided by the client may appear in log files. | ||||
| CVE-2024-43394 | 2 Apache, Microsoft | 3 Apache Http Server, Http Server, Windows | 2025-11-04 | 7.5 High |
| Server-Side Request Forgery (SSRF) in Apache HTTP Server on Windows allows to potentially leak NTLM hashes to a malicious server via mod_rewrite or apache expressions that pass unvalidated request input. This issue affects Apache HTTP Server: from 2.4.0 through 2.4.63. Note: The Apache HTTP Server Project will be setting a higher bar for accepting vulnerability reports regarding SSRF via UNC paths. The server offers limited protection against administrators directing the server to open UNC paths. Windows servers should limit the hosts they will connect over via SMB based on the nature of NTLM authentication. | ||||
| CVE-2024-43204 | 2 Apache, Apache Software Foundation | 2 Http Server, Apache Http Server | 2025-11-04 | 7.5 High |
| SSRF in Apache HTTP Server with mod_proxy loaded allows an attacker to send outbound proxy requests to a URL controlled by the attacker. Requires an unlikely configuration where mod_headers is configured to modify the Content-Type request or response header with a value provided in the HTTP request. Users are recommended to upgrade to version 2.4.64 which fixes this issue. | ||||
| CVE-2024-42516 | 1 Apache | 2 Apache Http Server, Http Server | 2025-11-04 | 7.5 High |
| HTTP response splitting in the core of Apache HTTP Server allows an attacker who can manipulate the Content-Type response headers of applications hosted or proxied by the server can split the HTTP response. This vulnerability was described as CVE-2023-38709 but the patch included in Apache HTTP Server 2.4.59 did not address the issue. Users are recommended to upgrade to version 2.4.64, which fixes this issue. | ||||
| CVE-2024-27316 | 4 Apache, Fedoraproject, Netapp and 1 more | 7 Http Server, Fedora, Ontap and 4 more | 2025-11-04 | 7.5 High |
| HTTP/2 incoming headers exceeding the limit are temporarily buffered in nghttp2 in order to generate an informative HTTP 413 response. If a client does not stop sending headers, this leads to memory exhaustion. | ||||
| CVE-2023-38709 | 7 Apache, Apple, Broadcom and 4 more | 9 Http Server, Macos, Fabric Operating System and 6 more | 2025-11-04 | 7.3 High |
| Faulty input validation in the core of Apache allows malicious or exploitable backend/content generators to split HTTP responses. This issue affects Apache HTTP Server: through 2.4.58. | ||||
| CVE-2017-9798 | 3 Apache, Debian, Redhat | 8 Http Server, Debian Linux, Enterprise Linux and 5 more | 2025-11-04 | 7.5 High |
| 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, or if httpd.conf has certain misconfigurations, aka Optionsbleed. This affects the Apache HTTP Server through 2.2.34 and 2.4.x through 2.4.27. The attacker sends an unauthenticated OPTIONS HTTP request when attempting to read secret data. This is a use-after-free issue and thus secret data is not always sent, and the specific data depends on many factors including configuration. Exploitation with .htaccess can be blocked with a patch to the ap_limit_section function in server/core.c. | ||||