CVE-2026-13204

ADVISORY - debian

Summary

If a provably insecure domain is covered by both an NSEC and NSEC3 record at the parent, and there exist an RRSIG for only one of these types, then BIND may exit unexpectedly with an assertion while validating this proof. 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.

bind9 1:9.20.26-1 https://kb.isc.org/docs/cve-2026-13204

EPSS Score⁠: 0.00509 (0.404)

Common Weakness Enumeration (CWE)

ADVISORY - redhat

CWE-617⁠

Reachable Assertion

Impacted images

Advisories

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