RHSA-2026:25090HighCVSS 7.5

Red Hat Security Advisory: httpd:2.4 security update

Published
June 10, 2026
Last Modified
August 18, 2026

🔗 CVE IDs covered (1)

CVE-2026-49975 →

📋 Description

CVE-2026-49975 — httpd: httpd: HTTP/2 Remote Denial of Service via compression bomb and Slowloris-style attack

🎯 Affected products86

  • Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-0:2.4.37-65.module+el8.10.0+24281+ea10630c.8.aarch64 (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-0:2.4.37-65.module+el8.10.0+24281+ea10630c.8.ppc64le (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-0:2.4.37-65.module+el8.10.0+24281+ea10630c.8.s390x (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-0:2.4.37-65.module+el8.10.0+24281+ea10630c.8.src (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-0:2.4.37-65.module+el8.10.0+24281+ea10630c.8.x86_64 (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-debuginfo-0:2.4.37-65.module+el8.10.0+24281+ea10630c.8.aarch64 (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-debuginfo-0:2.4.37-65.module+el8.10.0+24281+ea10630c.8.ppc64le (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-debuginfo-0:2.4.37-65.module+el8.10.0+24281+ea10630c.8.s390x (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-debuginfo-0:2.4.37-65.module+el8.10.0+24281+ea10630c.8.x86_64 (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-debugsource-0:2.4.37-65.module+el8.10.0+24281+ea10630c.8.aarch64 (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-debugsource-0:2.4.37-65.module+el8.10.0+24281+ea10630c.8.ppc64le (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-debugsource-0:2.4.37-65.module+el8.10.0+24281+ea10630c.8.s390x (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-debugsource-0:2.4.37-65.module+el8.10.0+24281+ea10630c.8.x86_64 (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-devel-0:2.4.37-65.module+el8.10.0+24281+ea10630c.8.aarch64 (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-devel-0:2.4.37-65.module+el8.10.0+24281+ea10630c.8.ppc64le (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-devel-0:2.4.37-65.module+el8.10.0+24281+ea10630c.8.s390x (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-devel-0:2.4.37-65.module+el8.10.0+24281+ea10630c.8.x86_64 (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-filesystem-0:2.4.37-65.module+el8.10.0+24281+ea10630c.8.noarch (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-manual-0:2.4.37-65.module+el8.10.0+24281+ea10630c.8.noarch (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-tools-0:2.4.37-65.module+el8.10.0+24281+ea10630c.8.aarch64 (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-tools-0:2.4.37-65.module+el8.10.0+24281+ea10630c.8.ppc64le (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-tools-0:2.4.37-65.module+el8.10.0+24281+ea10630c.8.s390x (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-tools-0:2.4.37-65.module+el8.10.0+24281+ea10630c.8.x86_64 (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-tools-debuginfo-0:2.4.37-65.module+el8.10.0+24281+ea10630c.8.aarch64 (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-tools-debuginfo-0:2.4.37-65.module+el8.10.0+24281+ea10630c.8.ppc64le (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-tools-debuginfo-0:2.4.37-65.module+el8.10.0+24281+ea10630c.8.s390x (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-tools-debuginfo-0:2.4.37-65.module+el8.10.0+24281+ea10630c.8.x86_64 (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mod_http2-0:1.15.7-10.module+el8.10.0+24368+ad388a0c.6.aarch64 (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mod_http2-0:1.15.7-10.module+el8.10.0+24368+ad388a0c.6.ppc64le (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • +56 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: See the security bulletin for a detailed mitigation procedure.

🔗 References (4)