Vulnerability Description
The validating recursor in Hickory DNS hickory-recursor 0.25.0 through 0.26.0-alpha.1, hickory-resolver 0.26.0-alpha.1 before 0.26.2, and hickory-net 0.26.0-beta.1 before 0.26.2 caches DNSSEC-bogus answers using the untrusted, attacker-supplied record TTL (capped at 24 hours) instead of a short validation-failure TTL. A remote attacker who spoofs a single authoritative response with an invalid signature and a long TTL can keep the bogus result cached for up to 24 hours.
CVSS Score
LOW
Related Weaknesses (CWE)
References
- https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-29q9-p769-j8
- https://www.vulncheck.com/advisories/hickory-dns-0.25.0-through-0.26.0-alpha.1-d
FAQ
What is CVE-2026-123598?
CVE-2026-123598 is a vulnerability with a CVSS score of 3.7 (LOW). The validating recursor in Hickory DNS hickory-recursor 0.25.0 through 0.26.0-alpha.1, hickory-resolver 0.26.0-alpha.1 before 0.26.2, and hickory-net 0.26.0-beta.1 before 0.26.2 caches DNSSEC-bogus an...
How severe is CVE-2026-123598?
CVE-2026-123598 has been rated LOW with a CVSS base score of 3.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-123598?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.