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OpenAdvisories

Package · Ubuntu

apache2

144 known vulnerabilities.

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  • Critical 9.1
    CVE-2025-23048 Public exploit

    Apache HTTP Server: mod_ssl access control bypass with session resumption

    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 ea…

  • Critical 9.8
    CVE-2024-38476 Public exploit EPSS 42%

    Apache HTTP Server may use exploitable/malicious backend application output to run local handlers via internal redirect

    Vulnerability in core of Apache HTTP Server 2.4.59 and earlier are vulnerably to information disclosure, SSRF or local script execution via backend applications whose response headers are malicious or exploitable. Users are recommended to upgrade to version 2…

  • Critical 9.1
    CVE-2024-38475 Exploited Public exploit EPSS 100%

    Apache HTTP Server weakness in mod_rewrite when first segment of substitution matches filesystem path.

    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…

    KEV May 1, 2025
  • Critical 9.8
    CVE-2023-25690 Public exploit EPSS 84%

    Apache HTTP Server: HTTP request splitting with mod_rewrite and mod_proxy

    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 patter…

  • Critical 9.0
    CVE-2021-40438 Exploited · Ransomware Public exploit EPSS 100%

    mod_proxy SSRF

    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 Apache HTTP Server 2.4.48 and earlier.

    KEV Dec 1, 2021