RHBA-2026:50158LowCVSS 3.7

Red Hat Bug Fix Advisory: httpd bug fix and enhancement update

Published
August 4, 2026
Last Modified
October 9, 2026

🔗 CVE IDs covered (1)

CVE-2026-56449 →

📋 Description

CVE-2026-56449 — httpd: httpd: Denial of Service via crafted HTTP response bodies in mod_proxy_html

🎯 Affected products76

  • Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-0:2.4.63-13.el10_2.5.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-0:2.4.63-13.el10_2.5.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-0:2.4.63-13.el10_2.5.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-0:2.4.63-13.el10_2.5.src as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-0:2.4.63-13.el10_2.5.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-core-0:2.4.63-13.el10_2.5.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-core-0:2.4.63-13.el10_2.5.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-core-0:2.4.63-13.el10_2.5.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-core-0:2.4.63-13.el10_2.5.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-core-debuginfo-0:2.4.63-13.el10_2.5.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-core-debuginfo-0:2.4.63-13.el10_2.5.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-core-debuginfo-0:2.4.63-13.el10_2.5.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-core-debuginfo-0:2.4.63-13.el10_2.5.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-debuginfo-0:2.4.63-13.el10_2.5.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-debuginfo-0:2.4.63-13.el10_2.5.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-debuginfo-0:2.4.63-13.el10_2.5.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-debuginfo-0:2.4.63-13.el10_2.5.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-debugsource-0:2.4.63-13.el10_2.5.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-debugsource-0:2.4.63-13.el10_2.5.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-debugsource-0:2.4.63-13.el10_2.5.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-debugsource-0:2.4.63-13.el10_2.5.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-devel-0:2.4.63-13.el10_2.5.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-devel-0:2.4.63-13.el10_2.5.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-devel-0:2.4.63-13.el10_2.5.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-devel-0:2.4.63-13.el10_2.5.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-filesystem-0:2.4.63-13.el10_2.5.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-manual-0:2.4.63-13.el10_2.5.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-tools-0:2.4.63-13.el10_2.5.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • httpd-tools-0:2.4.63-13.el10_2.5.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • +46 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: Disable the `mod_proxy_html` module if HTML link rewriting is not required: 1. Comment out the module loader directive in `/etc/httpd/conf.modules.d/00-proxyhtml.conf`: ``` # sed -i 's/^\s*LoadModule proxy_html_module/#&/' /etc/httpd/conf.modules.d/00-proxyhtml.conf ``` Alternatively, set `ProxyHTMLEnable Off` in the affected server or virtual host configuration. 2. Reload the Apache HTTP Server: ``` # systemctl reload httpd ``` Caveats: Disabling `mod_proxy_html` or turning off `ProxyHTMLEnable` halts automated rewriting of URLs in proxied HTML responses, which may break web applications that depend on backend path translation. Warning: Reloading or restarting the `httpd` service may temporarily interrupt active network connections.

🔗 References (2)