CVE-2026-123583

CVSS 6.3 (medium) · published 2026-11-08

The recursive resolver in Hickory DNS hickory-recursor 0.25.0 through 0.25.2 and hickory-resolver 0.26.0 before 0.26.2 does not apply out-of-bailiwick filtering to negative responses. Attackers able to supply crafted negative responses can include out-of-bailiwick records to facilitate cache poisoning and more easily exploit other DNSSEC verification flaws.

Weakness: CWE-349

Source: NVD CVE-2026-123583

References

• https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-vcjp-57rr-mpfw
• https://www.vulncheck.com/advisories/hickory-dns-0.25.0-through-0.25.2-missing-bailiwick-filtering-on-negative-responses

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