High RHSA-2025:15036 1 CVE

Red Hat Security Advisory: httpd security update

Published Sep 2, 2025 · Updated Oct 17, 2026

Ecosystem: Red Hat

Fixed packages 6

Release	Package	Fixed in
Red Hat · RHEL 6 ELS rhel_els:6	httpd	0:2.2.15-71.el6_10.1
Red Hat · RHEL 6 ELS rhel_els:6	httpd-debuginfo	0:2.2.15-71.el6_10.1
Red Hat · RHEL 6 ELS rhel_els:6	httpd-devel	0:2.2.15-71.el6_10.1
Red Hat · RHEL 6 ELS rhel_els:6	httpd-manual	0:2.2.15-71.el6_10.1
Red Hat · RHEL 6 ELS rhel_els:6	httpd-tools	0:2.2.15-71.el6_10.1
Red Hat · RHEL 6 ELS rhel_els:6	mod_ssl	1:2.2.15-71.el6_10.1

Vulnerabilities 1

High 7.4

CVE-2025-49812 Public exploit

Apache HTTP Server: mod_ssl TLS upgrade attack

In some mod_ssl configurations on Apache HTTP Server versions through to 2.4.63, an HTTP desynchronisation attack allows a man-in-the-middle attacker to hijack an HTTP session via a TLS upgrade. Only configurations using "SSLEngine optional" to enable TLS upg…

Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Azure Linux Alpine

Jul 10, 2025

References

article
https://access.redhat.com/security/updates/classification/#moderate
report
https://bugzilla.redhat.com/show_bug.cgi?id=2374580
advisory
https://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_15036.json
report
https://access.redhat.com/security/cve/CVE-2025-49812
advisory
https://www.cve.org/CVERecord?id=CVE-2025-49812
advisory
https://nvd.nist.gov/vuln/detail/CVE-2025-49812
article
https://httpd.apache.org/security/vulnerabilities_24.html