CVE-2026-123585
MEDIUM
MEDIUM
Priority: 0.02
BB Relevance:
74/100
Published: 2026-11-08
Modified: 2026-11-08
First seen: 2026-11-08
Status: active
Attack Surface
Network
Low Complexity
No Auth
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
None
UI:
None
S:
X
AT:
None
VC:
None
VI:
None
VA:
Low
Description
The hickory-resolver component of Hickory DNS 0.25.0 before 0.26.2 follows irrelevant CNAME records when resolving recursive queries, sending queries that are unnecessary to answer the original request. Attackers controlling DNS responses can include CNAME records in the authority or additional sections, or outside the original query name's CNAME chain, causing excess resolver queries and increased query amplification.
Weakness Classification (1)
Affected Software (1)
| Vendor | Product | Version |
|---|---|---|
| hickory-dns | hickory-dns | 0.25.0 < 0.26.2 |
References & Advisories (2)
vendor-advisory
third-party-advisory