Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Fixed packages 11

Vulnerabilities 19

• Critical 9.8
  CVE-2026-56154

  Apache HTTP Server: mod_rewrite use-after-free via %{LA-U:HTTP:...}

  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.

  Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Azure Linux Alpine
  Oct 1, 2026
• Critical 9.8
  CVE-2026-57941

  Apache HTTP Server: mod_http2 use-after-free / wild write via shared session->bbtmp re-entrancy

  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.

  Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Azure Linux Alpine
  Oct 1, 2026
• Critical 9.8
  CVE-2026-59797

  Apache HTTP Server: mod_ssl SSLRequire allows .htaccess ap_expr file-function

  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.

  Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Azure Linux Alpine
  Oct 1, 2026
• High 8.8
  CVE-2026-93546

  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.

  Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Azure Linux Alpine
  Oct 1, 2026
• High 8.1
  CVE-2026-73636

  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 trigge…

  Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Azure Linux Alpine
  Oct 1, 2026
• High 7.5
  CVE-2026-46729

  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.

  Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Azure Linux Alpine
  Oct 1, 2026
• High 7.5
  CVE-2026-47360

  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 af…

  Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Azure Linux Alpine
  Oct 1, 2026
• High 7.5
  CVE-2026-48005

  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 w…

  Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Azure Linux Alpine
  Oct 1, 2026
• High 7.5
  CVE-2026-56153

  Apache HTTP Server: mod_charset_lite: Heap overflow in finish_partial_char

  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.

  Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Azure Linux Alpine
  Oct 1, 2026
• High 7.5
  CVE-2026-56449

  Apache HTTP Server: mod_proxy_html: crash in dump_content

  Out-of-bounds Write vulnerability in Apache HTTP Server's mod_proxy_html with crafted HTTP response bodies. This issue affects Apache HTTP Server version 2.4.68.

  Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Azure Linux Alpine
  Oct 1, 2026
• High 7.5
  CVE-2026-63045

  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…

  Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Azure Linux Alpine
  Oct 1, 2026
• High 7.5
  CVE-2026-63292 Public exploit

  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 ex…

  Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Azure Linux Alpine
  Oct 1, 2026
• High 7.5
  CVE-2026-63686 Public exploit

  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…

  Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Azure Linux Alpine
  Oct 1, 2026
• High 7.5
  CVE-2026-63718

  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…

  Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Azure Linux Alpine
  Oct 1, 2026
• High 7.3
  CVE-2026-73637

  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 AuthDigestNcC…

  Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Azure Linux Alpine
  Oct 1, 2026
• Medium 5.3
  CVE-2026-58415

  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 .DA…

  Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Azure Linux Alpine
  Oct 1, 2026
• Medium 5.3
  CVE-2026-79768

  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 af…

  Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Azure Linux Alpine
  Oct 1, 2026
• Medium 4.3
  CVE-2026-42528

  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

  Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Azure Linux Alpine
  Oct 1, 2026
• Low 3.7
  CVE-2026-42356

  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 unders…

  Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Azure Linux Alpine
  Oct 1, 2026

References

• article
  https://images.redhat.com/
• report
  https://access.redhat.com/security/cve/CVE-2026-47360
• article
  https://access.redhat.com/security/updates/classification/
• report
  https://access.redhat.com/security/cve/CVE-2026-42356
• report
  https://access.redhat.com/security/cve/CVE-2026-48005
• report
  https://access.redhat.com/security/cve/CVE-2026-73636
• report
  https://access.redhat.com/security/cve/CVE-2026-58415
• report
  https://access.redhat.com/security/cve/CVE-2026-56153
• report
  https://access.redhat.com/security/cve/CVE-2026-46729
• report
  https://access.redhat.com/security/cve/CVE-2026-63045
• report
  https://access.redhat.com/security/cve/CVE-2026-63292
• report
  https://access.redhat.com/security/cve/CVE-2026-42528
• report
  https://access.redhat.com/security/cve/CVE-2026-63686
• report
  https://access.redhat.com/security/cve/CVE-2026-73637
• report
  https://access.redhat.com/security/cve/CVE-2026-93546
• report
  https://access.redhat.com/security/cve/CVE-2026-56449
• report
  https://access.redhat.com/security/cve/CVE-2026-79768
• report
  https://access.redhat.com/security/cve/CVE-2026-63718
• report
  https://access.redhat.com/security/cve/CVE-2026-59797
• report
  https://access.redhat.com/security/cve/CVE-2026-57941
• report
  https://access.redhat.com/security/cve/CVE-2026-56154
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_74858.json
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2544825
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-42356
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-42356
• article
  http://www.openwall.com/lists/oss-security/2026/10/01/11
• article
  https://httpd.apache.org/security/vulnerabilities_24.html
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2544828
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-42528
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-42528
• article
  http://www.openwall.com/lists/oss-security/2026/10/01/12
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2544835
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-46729
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-46729
• article
  http://www.openwall.com/lists/oss-security/2026/10/01/13
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2544884
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-47360
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-47360
• article
  http://www.openwall.com/lists/oss-security/2026/10/01/14