MEDIUM 6.3 NVD
CVE-2026-123578
Hickory DNS hickory-net 0.26.0 before 0.26.2 and hickory-proto 0.25.0 through 0.25.2 skip the check that a UDP response's question section matches the query whe
Hickory DNS hickory-net 0.26.0 before 0.26.2 and hickory-proto 0.25.0 through 0.25.2 skip the check that a UDP response's question section matches the query when the response has an empty question section (QDCOUNT=0), and also skip the case-randomization check. Remote attackers able to inject spoofed UDP responses can send QDCOUNT=0 responses to bypass these checks, weakening defenses against DNS spoofing.
References
- https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-3w89-7rx5-hpwx
- https://www.vulncheck.com/advisories/hickory-dns-0.26.0-before-0.26.2-response-validation-
This medium severity vulnerability with a CVSS score of 6.3 was published on 2026-11-08 via NVD.
vulnfeed aggregates 16937 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.