Bug 2568761 (CVE-2026-123583) - CVE-2026-123583 hickory-recursor: hickory-resolver: Hickory DNS: DNS cache poisoning via missing bailiwick filtering on negative responses
Summary: CVE-2026-123583 hickory-recursor: hickory-resolver: Hickory DNS: DNS cache po...
Keywords:
Status: NEW
Alias: CVE-2026-123583
Product: Security Response
Classification: Other
Component: vulnerability-draft
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
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Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-08 02:02 UTC by OSIDB Bzimport
Modified: 2026-11-08 02:54 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-11-08 02:02:07 UTC 
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.
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