Resource Exhaustion The advisory has been revoked - it doesn't affect any version of package bind-libs (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL10-BINDLIBS-18224161
- published23 Jul 2026
- disclosed22 Jul 2026
Introduced: 22 Jul 2026
CVE-2026-11622 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream bind-libs package and not the bind-libs package as distributed by RHEL.
A DNSSEC validating resolver that is under a random subdomain attack against a DNSSEC-signed zone can suffer from runaway memory usage. The attacker needs to be able to send queries faster than the resolver can perform validation. The increased memory usage can be orders of magnitude beyond the limit configured in the max-cache-size parameter.
This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0 through 9.21.23, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2504298
- https://access.redhat.com/security/cve/CVE-2026-11622
- https://access.redhat.com/errata/RHSA-2026:54071
- https://access.redhat.com/errata/RHSA-2026:55437
- https://downloads.isc.org/isc/bind9/9.20.26
- https://downloads.isc.org/isc/bind9/9.21.24
- https://kb.isc.org/docs/cve-2026-11622