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OpenAdvisories
High RHSA-2026:18786 1 CVE

Red Hat Security Advisory: bind security update

Published May 20, 2026 · Updated Sep 2, 2026

Ecosystem: Red Hat

Fixed packages 21

ReleasePackageFixed in
Red Hat · RHEL 9 enterprise_linux:9::appstream bind 32:9.16.23-40.el9_8.1
Red Hat · RHEL 9 enterprise_linux:9::appstream bind-chroot 32:9.16.23-40.el9_8.1
Red Hat · RHEL 9 enterprise_linux:9::appstream bind-debuginfo 32:9.16.23-40.el9_8.1
Red Hat · RHEL 9 enterprise_linux:9::appstream bind-debugsource 32:9.16.23-40.el9_8.1
Red Hat · RHEL 9 enterprise_linux:9::appstream bind-dnssec-doc 32:9.16.23-40.el9_8.1
Red Hat · RHEL 9 enterprise_linux:9::appstream bind-dnssec-utils 32:9.16.23-40.el9_8.1
Red Hat · RHEL 9 enterprise_linux:9::appstream bind-dnssec-utils-debuginfo 32:9.16.23-40.el9_8.1
Red Hat · RHEL 9 enterprise_linux:9::appstream bind-libs 32:9.16.23-40.el9_8.1
Red Hat · RHEL 9 enterprise_linux:9::appstream bind-libs-debuginfo 32:9.16.23-40.el9_8.1
Red Hat · RHEL 9 enterprise_linux:9::appstream bind-license 32:9.16.23-40.el9_8.1
Red Hat · RHEL 9 enterprise_linux:9::appstream bind-utils 32:9.16.23-40.el9_8.1
Red Hat · RHEL 9 enterprise_linux:9::appstream bind-utils-debuginfo 32:9.16.23-40.el9_8.1
Red Hat · RHEL 9 enterprise_linux:9::appstream python3-bind 32:9.16.23-40.el9_8.1
Red Hat · RHEL 9 enterprise_linux:9::crb bind-debuginfo 32:9.16.23-40.el9_8.1
Red Hat · RHEL 9 enterprise_linux:9::crb bind-debugsource 32:9.16.23-40.el9_8.1
Red Hat · RHEL 9 enterprise_linux:9::crb bind-devel 32:9.16.23-40.el9_8.1
Red Hat · RHEL 9 enterprise_linux:9::crb bind-dnssec-utils-debuginfo 32:9.16.23-40.el9_8.1
Red Hat · RHEL 9 enterprise_linux:9::crb bind-doc 32:9.16.23-40.el9_8.1
Red Hat · RHEL 9 enterprise_linux:9::crb bind-libs 32:9.16.23-40.el9_8.1
Red Hat · RHEL 9 enterprise_linux:9::crb bind-libs-debuginfo 32:9.16.23-40.el9_8.1
Red Hat · RHEL 9 enterprise_linux:9::crb bind-utils-debuginfo 32:9.16.23-40.el9_8.1

Vulnerabilities 1

  • High 7.5
    CVE-2025-8677 EPSS 11%

    Resource exhaustion via malformed DNSKEY handling

    Querying for records within a specially crafted zone containing certain malformed DNSKEY records can lead to CPU exhaustion. This issue affects BIND 9 versions 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.18.11-S1 through 9.18.39-…

    ISC BIND 9 bind9 bind9 Debian Ubuntu Azure Linux Alpine Wolfi

References

  • article
    https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html/9.8_release_notes/index
  • article
    https://access.redhat.com/security/updates/classification/#important
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2405830
  • article
    https://issues.redhat.com/browse/RHEL-79714
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_18786.json
  • report
    https://access.redhat.com/security/cve/CVE-2025-8677
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-8677
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-8677