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bind9: bind: Potential wildcard CNAME RPZ policy bypass

🗓️ 13 Aug 2026 11:28:25Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 4 Views

Wildcard CNAME RPZ policy bypass in BIND 9 via NAMETOOLONG errors during query processing.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.8aarch64bind32:9.16.23-40.el9_8.8bind-32:9.16.23-40.el9_8.8.aarch64.rpm
Red Hat Enterprise Linux9.8ppc64lebind32:9.16.23-40.el9_8.8bind-32:9.16.23-40.el9_8.8.ppc64le.rpm
Red Hat Enterprise Linux9.8s390xbind32:9.16.23-40.el9_8.8bind-32:9.16.23-40.el9_8.8.s390x.rpm
Red Hat Enterprise Linux9.8x86_64bind32:9.16.23-40.el9_8.8bind-32:9.16.23-40.el9_8.8.x86_64.rpm
Red Hat Enterprise Linux9.8aarch64bind-chroot32:9.16.23-40.el9_8.8bind-chroot-32:9.16.23-40.el9_8.8.aarch64.rpm
Red Hat Enterprise Linux9.8ppc64lebind-chroot32:9.16.23-40.el9_8.8bind-chroot-32:9.16.23-40.el9_8.8.ppc64le.rpm
Red Hat Enterprise Linux9.8s390xbind-chroot32:9.16.23-40.el9_8.8bind-chroot-32:9.16.23-40.el9_8.8.s390x.rpm
Red Hat Enterprise Linux9.8x86_64bind-chroot32:9.16.23-40.el9_8.8bind-chroot-32:9.16.23-40.el9_8.8.x86_64.rpm
Red Hat Enterprise Linux9.8aarch64bind-debuginfo32:9.16.23-40.el9_8.8bind-debuginfo-32:9.16.23-40.el9_8.8.aarch64.rpm
Red Hat Enterprise Linux9.8i686bind-debuginfo32:9.16.23-40.el9_8.8bind-debuginfo-32:9.16.23-40.el9_8.8.i686.rpm
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14 Aug 2026 15:01Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.17.5
EPSS0.00416
SSVC
4