RHSA-2026:16064HighCVSS 7.5

Red Hat Security Advisory: bind security update

Published
May 11, 2026
Last Modified
August 24, 2026

🔗 CVE IDs covered (1)

CVE-2026-1519 →

📋 Description

CVE-2026-1519 — bind: BIND: Denial of Service via maliciously crafted DNSSEC-validated zone

🎯 Affected products136

  • Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • bind-32:9.11.26-4.el8_4.9.src as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • bind-32:9.11.26-4.el8_4.9.src as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • bind-32:9.11.26-4.el8_4.9.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • bind-32:9.11.26-4.el8_4.9.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • bind-chroot-32:9.11.26-4.el8_4.9.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • bind-chroot-32:9.11.26-4.el8_4.9.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • bind-debuginfo-32:9.11.26-4.el8_4.9.i686 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • bind-debuginfo-32:9.11.26-4.el8_4.9.i686 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • bind-debuginfo-32:9.11.26-4.el8_4.9.i686 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • bind-debuginfo-32:9.11.26-4.el8_4.9.i686 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • bind-debuginfo-32:9.11.26-4.el8_4.9.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • bind-debuginfo-32:9.11.26-4.el8_4.9.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • bind-debuginfo-32:9.11.26-4.el8_4.9.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • bind-debuginfo-32:9.11.26-4.el8_4.9.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • bind-debugsource-32:9.11.26-4.el8_4.9.i686 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • bind-debugsource-32:9.11.26-4.el8_4.9.i686 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • bind-debugsource-32:9.11.26-4.el8_4.9.i686 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • bind-debugsource-32:9.11.26-4.el8_4.9.i686 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • bind-debugsource-32:9.11.26-4.el8_4.9.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • bind-debugsource-32:9.11.26-4.el8_4.9.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • bind-debugsource-32:9.11.26-4.el8_4.9.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • bind-debugsource-32:9.11.26-4.el8_4.9.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • bind-devel-32:9.11.26-4.el8_4.9.i686 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • bind-devel-32:9.11.26-4.el8_4.9.i686 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • bind-devel-32:9.11.26-4.el8_4.9.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • bind-devel-32:9.11.26-4.el8_4.9.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • +106 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: To mitigate this issue, disable DNSSEC validation on affected BIND resolvers. Alternatively, configure the BIND server as authoritative-only if recursive queries are not required. Disabling DNSSEC validation may reduce the security posture of the DNS resolver. A restart of the BIND service (`named`) is required for these changes to take effect and may temporarily interrupt DNS resolution.

🔗 References (4)