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apache2 vulnerabilities

Vulnerabilities published for apache2 in the last 30 days: 19. Listed in the KEV catalogue: 0.

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Vulnerabilities: 86

  1. CVE-2026-63686

    High · CVSS 7.5EPSS 0.48%Fix available

    Apache HTTP Server: mod_xml2enc crash on charset conversion failure

    A NULL pointer dereference in mod_xml2enc in Apache Software Foundation Apache HTTP Server before 2.4.69 on all platforms allows an untrusted backend server to cause a denial of service via a proxied response with a charset whose conversion partially succeeds then fails. Users are recommended to upgrade to version 2.4.69, which fixes this issue.

    • Update to 2.4.52-1ubuntu4.25
    Published Updated
  2. CVE-2026-93546

    High · CVSS 8.8EPSS 0.44%Fix available

    Apache HTTP Server: mod_dav_fs namespace overflow

    Integer overflow in mod_dav_fs in Apache HTTP Server through 2.4.68 allows an authenticated WebDAV client with write access to crash worker processes and persistently corrupt a directory's property database via PROPPATCH requests declaring many XML namespaces.

    • Update to 2.4.52-1ubuntu4.25
    Published Updated
  3. CVE-2026-79768

    Medium · CVSS 5.3EPSS 0.59%Fix available

    Apache HTTP Server: mod_userdir information disclosure

    Path equivalence: '/./' (single dot directory) vulnerability in Apache HTTP Server's mod_userdir module when configured with absolute non-wildcard UserDir directive (the 2nd form in https://httpd.apache.org/docs/2.4/mod/mod_userdir.html#userdir) This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.

    • Update to 2.4.52-1ubuntu4.25
    Published Updated
  4. CVE-2026-73637

    High · CVSS 7.3EPSS 0.48%Fix available

    Apache HTTP Server: mod_auth_digest DoS attack

    Use after free in mod_auth_digest in Apache Software Foundation Apache HTTP Server before 2.4.69 on all platforms allows an unauthenticated remote client to cause authentication state corruption via concurrent Digest authentication requests when AuthDigestNcCheck is enabled or AuthDigestNonceLifetime is set to 0. Users are recommended to upgrade to version 2.4.69, which fixes this issue.

    • Update to 2.4.52-1ubuntu4.25
    Published Updated
  5. CVE-2026-73636

    High · CVSS 8.1EPSS 0.41%Fix available

    Apache HTTP Server: mod_auth_digest one-time-nonce replay attack

    Authentication bypass by capture-replay in mod_auth_digest in Apache Software Foundation Apache HTTP Server 2.4.x on all platforms allows a man-in-the-middle (MITM) attacker to replay captured digest authentication credentials via crafted requests that trigger garbage collection of the client's shared memory entry when AuthDigestNonceLifetime is set to 0. Users are recommended to upgrade to version 2.4.69, which fixes this issue.

    • Update to 2.4.52-1ubuntu4.25
    Published Updated
  6. CVE-2026-63718

    High · CVSS 7.5EPSS 0.5%Fix available

    Apache HTTP Server: mod_proxy_uwsgi Transfer-Encoding response smuggling

    Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') response smuggling vulnerability in Apache HTTP Server via mod_proxy_uwsgi and a crafted uwsgi response with Transfer-Encoding. This issue affects Apache HTTP Server: from 2.4.30 through 2.4.68.

    • Update to 2.4.52-1ubuntu4.25
    Published Updated
  7. CVE-2026-63292

    High · CVSS 7.5EPSS 0.88%Public exploitFix available

    Apache HTTP Server: mod_vhost_alias stack overflow

    Stack-based buffer overflow in mod_vhost_alias in Apache Software Foundation Apache HTTP Server through 2.4.68 on all platforms allows a remote client to cause a denial of service or potentially execute arbitrary code via an HTTP request with a Host header exceeding 8192 bytes when VirtualDocumentRoot uses a hostname format specifier and LimitRequestFieldSize is raised above the default. Users are recommended to upgrade to version 2.4.69, which fixes this issue.

    • Update to 2.4.52-1ubuntu4.25
    Published Updated
  8. CVE-2026-63045

    High · CVSS 7.5EPSS 0.47%Fix available

    Apache HTTP Server: mod_proxy_ftp PASV address handling

    Improper validation of FTP PASV reply address in mod_proxy_ftp in Apache Software Foundation Apache HTTP Server through 2.4.68 on all platforms allows, in forward proxy configurations, an untrusted FTP server to cause the proxy to open a data connection to an arbitrary third-party host via a crafted PASV response. Users are recommended to upgrade to version 2.4.69, which fixes this issue.

    • Update to 2.4.52-1ubuntu4.25
    Published Updated
  9. CVE-2026-58415

    Medium · CVSS 5.3EPSS 0.53%Fix available

    Apache HTTP Server: mod_dav_fs property database read access

    Internal state files accessible to external parties in mod_dav_fs in Apache Software Foundation Apache HTTP Server before 2.4.69 on all platforms allows a remote client to read WebDAV dead properties of resources it cannot author via a GET request for the .DAV state directory This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.

    • Update to 2.4.52-1ubuntu4.25
    Published Updated
  10. CVE-2026-48005

    High · CVSS 7.5EPSS 0.61%No fix published

    Apache HTTP Server: mod_auth_digest reauthentication attack

    Missing authentication checks in mod_auth_digest in Apache Software Foundation Apache HTTP Server before 2.4.69 on all platforms allows an unauthenticated remote client to cause a denial of service (forced re-authentication) via forged Authorization headers when Digest authentication is enabled with AuthDigestNcCheck . Users are recommended to upgrade to version 2.4.69, which fixes this issue.

    Published Updated
  11. CVE-2026-47360

    High · CVSS 7.5EPSS 0.39%No fix published

    Apache HTTP Server: mod_session: Session cookie not removed during internal redirect

    Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache HTTP Server's mod_session_cookie module.   When SessionCookieRemove changes across internal redirects, the session cookie may still be passed to a backend server. This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.

    Published Updated
  12. CVE-2026-42356

    Low · CVSS 3.7EPSS 0.47%No fix published

    Apache HTTP Server: limited RCE for some internal redirects to non-CGI files in CGI directories

    Deployment of wrong handler vulnerability in Apache HTTP Server allows the target of some internal redirects from CGI programs to also be treated as CGI and executed. The target must already be in a directory enabled for CGI and have no other extension understood by mod_mime. This issue affects Apache HTTP Server: from 2.4.60 through 2.4.68.

    Published Updated

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