RHSA-2026:25171HighCVSS 7.5

Red Hat Security Advisory: bind9.16 security update

Published
June 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 products24

  • Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • bind9.16-32:9.16.23-0.7.el8_6.10.src as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • bind9.16-32:9.16.23-0.7.el8_6.10.src as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • bind9.16-32:9.16.23-0.7.el8_6.10.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • bind9.16-32:9.16.23-0.7.el8_6.10.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • bind9.16-chroot-32:9.16.23-0.7.el8_6.10.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • bind9.16-chroot-32:9.16.23-0.7.el8_6.10.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • bind9.16-debuginfo-32:9.16.23-0.7.el8_6.10.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • bind9.16-debuginfo-32:9.16.23-0.7.el8_6.10.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • bind9.16-debugsource-32:9.16.23-0.7.el8_6.10.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • bind9.16-debugsource-32:9.16.23-0.7.el8_6.10.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • bind9.16-dnssec-utils-debuginfo-32:9.16.23-0.7.el8_6.10.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • bind9.16-dnssec-utils-debuginfo-32:9.16.23-0.7.el8_6.10.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • bind9.16-libs-32:9.16.23-0.7.el8_6.10.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • bind9.16-libs-32:9.16.23-0.7.el8_6.10.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • bind9.16-libs-debuginfo-32:9.16.23-0.7.el8_6.10.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • bind9.16-libs-debuginfo-32:9.16.23-0.7.el8_6.10.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • bind9.16-license-32:9.16.23-0.7.el8_6.10.noarch as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • bind9.16-license-32:9.16.23-0.7.el8_6.10.noarch as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • bind9.16-utils-32:9.16.23-0.7.el8_6.10.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • bind9.16-utils-32:9.16.23-0.7.el8_6.10.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • bind9.16-utils-debuginfo-32:9.16.23-0.7.el8_6.10.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • bind9.16-utils-debuginfo-32:9.16.23-0.7.el8_6.10.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)

✅ 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)