Apache HTTP Server vulnerabilities

CVE records published for Apache Software Foundation Apache HTTP Server, newest first. Follow to get an email when a new one appears.

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Total CVEs145
Last 30 days0
Critical16
Exploited5
145 results
7.5High
CVE-2026-63686

Apache HTTP Server: mod_xml2enc crash on charset conversion failure

Apache Software Foundation Apache HTTP Server

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…

8.8High
CVE-2026-93546

Apache HTTP Server: mod_dav_fs namespace overflow

Apache Software Foundation Apache HTTP Server

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.

5.3Medium
CVE-2026-79768

Apache HTTP Server: mod_userdir information disclosure

Apache Software Foundation Apache HTTP Server

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…

7.3High
CVE-2026-73637

Apache HTTP Server: mod_auth_digest DoS attack

Apache Software Foundation Apache HTTP Server

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 AuthDigestNcC…

8.1High
CVE-2026-73636

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

Apache Software Foundation Apache HTTP Server

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 trigge…

7.5High
CVE-2026-63292

Apache HTTP Server: mod_vhost_alias stack overflow

Apache Software Foundation Apache HTTP Server

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 ex…

7.5High
CVE-2026-63045

Apache HTTP Server: mod_proxy_ftp PASV address handling

Apache Software Foundation Apache HTTP Server

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…

5.3Medium
CVE-2026-58415

Apache HTTP Server: mod_dav_fs property database read access

Apache Software Foundation Apache HTTP Server

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 .DA…

7.5High
CVE-2026-48005

Apache HTTP Server: mod_auth_digest reauthentication attack

Apache Software Foundation Apache HTTP Server

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 w…

4.3Medium
CVE-2026-42528

Apache HTTP Server: mod_dav shared lock overflow

Apache Software Foundation Apache HTTP Server

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

7.5High
CVE-2026-49975

Apache HTTP Server: mod_http2 denial of service

Apache Software Foundation Apache HTTP Server; Red Hat JBoss Core Services for RHEL 8; Red Hat JBoss Core Services on RHEL 7; Red Hat Red Hat Enterprise Linux 10

Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of service via malicious HTTP requests. This issue affects Apache HTTP Server: from 2.4.17 through 2.4.67.

33%EPSS
7.5High
CVE-2026-42536

Apache HTTP Server: mod_xml2enc heap overflow

Apache Software Foundation Apache HTTP Server; Red Hat JBoss Core Services for RHEL 8; Red Hat Red Hat Enterprise Linux 10; Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support

Heap-based Buffer Overflow vulnerability in Apache HTTP Server with mod_xml2enc, xml2StartParse, and untrusted content This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to upgrade to version 2.4.68, which fixes the issue.

1.0%EPSS
7.3High
CVE-2026-44185

Apache HTTP Server: Stack Buffer Over-Read in mod_ssl OCSP `send_request`

Apache Software Foundation Apache HTTP Server; Red Hat JBoss Core Services for RHEL 8; Red Hat Red Hat Enterprise Linux 10; Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support

Buffer Over-read vulnerability in Apache HTTP Server via outbound OCSP requests to an attacker controlled OCSP server This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to upgrade to version 2.4.68, which fixes the issue.

7.5High
CVE-2026-34355

Apache HTTP Server: mod_proxy_html buffer overflow

Apache Software Foundation Apache HTTP Server; Red Hat JBoss Core Services for RHEL 8; Red Hat Red Hat Enterprise Linux 10; Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support

A buffer overflow in mod_proxy_html in Apache HTTP Server 2.4.67 and earlier allows an attack by an untrusted backend. Users are recommended to upgrade to version 2.4.68, which fixes this issue.

1.2%EPSS

The list holds every record since the start of 2025 and older records for this product.