RHSA-2026:88229 — Security Advisory

An update for httpd is now available for Red Hat Enterprise Linux 9.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server.

Security Fix(es):

• httpd: httpd: HTTP response smuggling via crafted Transfer-Encoding response in mod_proxy_uwsgi (CVE-2026-63718)

• httpd: httpd: Denial of Service via integer overflow in mod_dav_fs (CVE-2026-93546)

• httpd: httpd: Authentication state corruption via concurrent Digest authentication requests (CVE-2026-73637)

• httpd: httpd: unauthorized connection to arbitrary hosts via crafted FTP PASV response (CVE-2026-63045)

• httpd: httpd: Arbitrary code execution via oversized Host header in mod_vhost_alias (CVE-2026-63292)

• httpd: httpd: mod_heartmonitor: Denial of Service via NULL pointer dereference (CVE-2026-46729)

• httpd: httpd: Authentication bypass via credential replay in mod_auth_digest (CVE-2026-73636)

• httpd: httpd: Denial of Service via charset conversion failure in mod_xml2enc (CVE-2026-63686)

• httpd: httpd: Denial of service via forged Authorization headers in mod_auth_digest (CVE-2026-48005)

• httpd: httpd: Denial of Service via mod_rewrite lookahead (CVE-2026-56154)

• httpd: httpd: Denial of Service via heap-based buffer overflow in mod_charset_lite (CVE-2026-56153)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.