Vulnerabilidades do Apache Software Foundation Apache HTTP Server

CVE-2026-63718 Alta · 7.5 CWE-444 01/10/2026

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.

CVE-2026-48005 Alta · 7.5 CWE-306 01/10/2026

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.

CVE-2026-46729 Alta · 7.5 CWE-476 01/10/2026

Apache HTTP Server: mod_heartmonitor denial of service

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-2026-42528 Média · 4.3 CWE-789 01/10/2026

Apache HTTP Server: mod_dav shared lock overflow

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-2026-42356 Baixa · 3.7 CWE-430 01/10/2026

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.

CVE-2026-49975 Alta · 7.5 CWE-789 08/06/2026

Apache HTTP Server: mod_http2 denial of service

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.

CVE-2026-48913 Alta · 7.3 CWE-416 08/06/2026

Apache HTTP Server: mod_http2 memory corruption when file handles exhausted

Use After Free vulnerability in Apache HTTP Server module mod_http2 when file handles are already exhausted. This issue affects Apache HTTP Server: from 2.4.55 through 2.4.67.

CVE-2026-44631 Crítica · 9.8 CWE-124 08/06/2026

Apache HTTP Server: Heap Underflow in `ap_regname` via Signed Char Overflow

Buffer Underwrite vulnerability in Apache HTTP Server on crafted regular expressions in the configuration. 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.

CVE-2026-44186 Alta · 7.3 CWE-835 08/06/2026

Apache HTTP Server: Loop in `proxy_ftp_handler` in mod_proxy_ftp

Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in the mod_proxy_ftp module in Apache HTTP Server with an attacker controlled backend FTP server. This issue affects undefined: from 2.4.0 through 2.4.67. Users are recommended to upgrade to version 2.4.68, which fixes the issue.

CVE-2026-44185 Alta · 7.3 CWE-126 08/06/2026

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

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.

CVE-2026-44119 Média · 5.5 CWE-269 08/06/2026

Apache HTTP Server: escalation of privilege through expressions in .htaccess in multiple modules

Improper Privilege Management vulnerability in Apache HTTP Server 2.4.67 and earlier allows local .htaccess authors to read files with the privileges of the httpd user. This issue affects Apache HTTP Server: from through 2.4.67. Users are recommended to upgrade to version 2.4.68, which fixes the issue.

CVE-2026-43951 Média · 6.5 CWE-125 08/06/2026

Apache HTTP Server: OOB Read in `merge_response_headers` can cause crash

Out-of-bounds Read vulnerability in Apache HTTP Server with mod_headers and mod_mime and multiple response languages. This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.

CVE-2026-42536 Alta · 7.5 CWE-122 08/06/2026

Apache HTTP Server: mod_xml2enc heap overflow

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.

CVE-2026-42535 Crítica · 9.1 CWE-668 08/06/2026

Apache HTTP Server: mod_dav_fs protected directory access

A path handling issue in mod_dav_fs in Apache 2.4.67 and earlier allows a WebDAV content author to directly manipulate trusted DAV property databases, potentially causing child process crashes. Users are recommended to upgrade to version 2.4.68, which fixes this issue.

CVE-2026-34356 Alta · 7.5 CWE-122 08/06/2026

Apache HTTP Server: ProxyPassReverseCookieMap buffer overflow

Heap-based Buffer Overflow vulnerability in Apache HTTP Server with malicious backend servers and ProxyPassReverseCookie* 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.

CVE-2026-34355 Alta · 7.5 CWE-122 08/06/2026

Apache HTTP Server: mod_proxy_html buffer overflow

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.

CVE-2026-29170 Média · 6.1 CWE-79 08/06/2026

Apache HTTP Server: mod_proxy_ftp XSS

A cross-site scripting vulnerability exists in mod_proxy_ftp's HTML directory list generation in Apache HTTP Server 2.4.67 and earlier when listing FTP directory contents either via forward or reverse proxy configuration. Users are recommended to upgrade to version 2.4.68, which fixes this issue.

CVE-2026-29167 Crítica · 9.8 CWE-416 08/06/2026

Apache HTTP Server: mod_ldap per-dir use-after-free

Use After Free vulnerability in Apache HTTP Server with mod_ldap in per-directory configuration 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.

CVE-2026-28780 Crítica · 9.8 CWE-122 05/05/2026

Apache HTTP Server: buffer overflow in mod_proxy_ajp via ajp_msg_check_header()

Heap-based Buffer Overflow vulnerability in mod_proxy_ajp of Apache HTTP Server. If mod_proxy_ajp connects to a malicious AJP server this AJP server can send a malicious AJP message back to mod_proxy_ajp and cause it to write 4 attacker controlled bytes after the end of a heap based buffer. This issue affects Apache HTTP Server: through 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue.

CVE-2026-29168 Alta · 7.3 CWE-770 05/05/2026

Apache HTTP Server: mod_md unrestricted OCSP response

Allocation of Resources Without Limits or Throttling vulnerability in Apache HTTP Server's mod_md via OCSP response data. This issue affects Apache HTTP Server: from 2.4.30 through 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue.

CVE-2026-33523 Média · 6.5 CWE-443 04/05/2026

Apache HTTP Server: multiple modules: HTTP response splitting forwarding malicious status line

HTTP response splitting vulnerability in multiple Apache HTTP Server modules with untrusted or compromised backend servers. This issue affects Apache HTTP Server: from through 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue.

CVE-2026-33007 Média · 5.3 CWE-476 04/05/2026

Apache HTTP Server: mod_authn_socache crash

A NULL pointer dereference in the mod_authn_socache in Apache HTTP Server 2.4.66 and earlier allows an unauthenticated remote user to crash a child process in a caching forward proxy configuration. Users are recommended to upgrade to version 2.4.67, which fixes this issue.

CVE-2026-33006 Média · 4.8 CWE-208 04/05/2026

Apache HTTP Server: mod_auth_digest timing attack

A timing attack against mod_auth_digest in Apache HTTP Server 2.4.66 allows a bypass of Digest authentication by a remote attacker. Users are recommended to upgrade to version 2.4.67, which fixes this issue.

CVE-2026-29169 Alta · 7.5 CWE-476 04/05/2026

Apache HTTP Server: mod_dav_lock indirect lock crash

A NULL pointer dereference in mod_dav_lock in Apache HTTP Server 2.4.66 and earlier may allow an attacker to crash the server with a malicious request.mod_dav_lock is not used internally by mod_dav or mod_dav_fs. The only known use-case for mod_dav_lock was mod_dav_svn from Apache Subversion earlier than version 1.2.0. Users are recommended to upgrade to version 2.4.66, which fixes this issue, or remove mod_dav_lock.

CVE-2026-23918 Alta · 8.8 Exploit público CWE-415 04/05/2026

Apache HTTP Server: http2: double free and possible RCE on early reset

Double Free and possible RCE vulnerability in Apache HTTP Server with the HTTP/2 protocol. This issue affects Apache HTTP Server: 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue.