CVE-2026-59685

Out-of-bounds Write vulnerability in Apache HTTP Server on Windows while processing paths with 8.3 names that may grow when expanded.

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.

Apache HTTP Server is a powerful and flexible HTTP/1.1 compliant web server.

Security Fix(es):

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.(CVE-2026-48005)

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.(CVE-2026-58415)

Out-of-bounds Write vulnerability in Apache HTTP Server on Windows while processing paths with 8.3 names that may grow when expanded.

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-59685)

Improper Privilege Management vulnerability in Apache HTTP Server's mod_ssl via SSLRequire and file-related expressions.

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-59797)

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.(CVE-2026-63045)

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.(CVE-2026-63292)

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.(CVE-2026-63686)

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.(CVE-2026-63718)

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.(CVE-2026-73636)

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.(CVE-2026-73637)

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…

Apache HTTP Server is a powerful and flexible HTTP/1.1 compliant web server.

Security Fix(es):

Out-of-bounds Write vulnerability in Apache HTTP Server's mod_charset_lite.

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-56153)

Use After Free vulnerability in Apache HTTP Server's mod_rewrite when using lookahead (%{LA-U:HTTP:...})

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-56154)

Use After Free vulnerability in Apache HTTP Server's mod_http2 via shared session->bbtmp re-entrancy

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-57941)

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.(CVE-2026-58415)

Out-of-bounds Write vulnerability in Apache HTTP Server on Windows while processing paths with 8.3 names that may grow when expanded.

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-59685)

Improper Privilege Management vulnerability in Apache HTTP Server's mod_ssl via SSLRequire and file-related expressions.

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-59797)

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.(CVE-2026-63045)

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.(CVE-2026-63292)

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.(CVE-2026-63686)

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.(CVE-2026-63718)

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.(CVE-2026-79768)

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.(CVE-2026-93546)

Apache HTTP Server is a powerful and flexible HTTP/1.1 compliant web server.

Security Fix(es):

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.(CVE-2026-58415)

Out-of-bounds Write vulnerability in Apache HTTP Server on Windows while processing paths with 8.3 names that may grow when expanded.

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-59685)

Improper Privilege Management vulnerability in Apache HTTP Server's mod_ssl via SSLRequire and file-related expressions.

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-59797)

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.(CVE-2026-63045)

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.(CVE-2026-63292)

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.(CVE-2026-63686)

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.(CVE-2026-63718)

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.(CVE-2026-79768)

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.(CVE-2026-93546)

Apache HTTP Server is a powerful and flexible HTTP/1.1 compliant web server.

Security Fix(es):

A memory calculation bug in mod_dav in Apache httpd 2.4.67 and earlier allows an attacker with permission to create WebDAV locks to crash server child processes.

Users are recommended to upgrade to version 2.4.69, which fixes this issue(CVE-2026-42528)

NULL Pointer Dereference vulnerability in Apache HTTP Servers mod_heartmonitor over unicast listener.

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-46729)

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.(CVE-2026-47360)

Out-of-bounds Write vulnerability in Apache HTTP Server's mod_charset_lite.

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-56153)

Use After Free vulnerability in Apache HTTP Server's mod_rewrite when using lookahead (%{LA-U:HTTP:...})

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-56154)

Use After Free vulnerability in Apache HTTP Server's mod_http2 via shared session->bbtmp re-entrancy

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-57941)

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.(CVE-2026-58415)

Out-of-bounds Write vulnerability in Apache HTTP Server on Windows while processing paths with 8.3 names that may grow when expanded.

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-59685)

Improper Privilege Management vulnerability in Apache HTTP Server's mod_ssl via SSLRequire and file-related expressions.

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-59797)

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.(CVE-2026-63045)

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.(CVE-2026-63292)

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.(CVE-2026-63686)

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.(CVE-2026-63718)

Path equivalence: '/./' (single dot directory) vulnerability in Apache HTTP Server's mod_userdir module when configured with absolute non-wildcard UserDir directive (the 2nd…

Out-of-bounds Write vulnerability in Apache HTTP Server on Windows while processing paths with 8.3 names that may grow when expanded. This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.

Out-of-bounds Write vulnerability in Apache HTTP Server on Windows while processing paths with 8.3 names that may grow when expanded.

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.

Out-of-bounds Write vulnerability in Apache HTTP Server on Windows while processing paths with 8.3 names that may grow when expanded.

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.

Limited RCE for some internal redirects to non-CGI files in CGI directories. (CVE-2026-42356) mod_dav shared lock overflow. (CVE-2026-42528) mod_heartmonitor denial of service. (CVE-2026-46729) mod_session: Session cookie not removed during internal redirect. (CVE-2026-47360) mod_auth_digest reauthentication attack. (CVE-2026-48005) mod_charset_lite: Heap overflow in finish_partial_char. (CVE-2026-56153) mod_rewrite use-after-free via %{LA-U:HTTP:...}. (CVE-2026-56154) mod_proxy_html: crash in dump_content. (CVE-2026-56449) mod_http2 use-after-free / wild write via shared session->bbtmp re-entrancy. (CVE-2026-57941) mod_dav_fs property database read access. (CVE-2026-58415) Out-of-Bounds Write in ap_directory_walk() Canonical-Name Rewrite on CASE_BLIND_FILESYSTEM. (CVE-2026-59685) mod_ssl SSLRequire allows .htaccess ap_expr file-function. (CVE-2026-59797) mod_proxy_ftp PASV address handling. (CVE-2026-63045) mod_vhost_alias stack overflow. (CVE-2026-63292) mod_xml2enc crash on charset conversion failure. (CVE-2026-63686) mod_proxy_uwsgi Transfer-Encoding response smuggling. (CVE-2026-63718) mod_auth_digest one-time-nonce replay attack. (CVE-2026-73636) mod_auth_digest DoS attack. (CVE-2026-73637) mod_userdir information disclosure. (CVE-2026-79768) mod_dav_fs namespace overflow. (CVE-2026-93546)