Bug 2492909 (CVE-2026-42389) - CVE-2026-42389 pdns-recursor: reject more queries with invalid header values
Summary: CVE-2026-42389 pdns-recursor: reject more queries with invalid header values
Keywords:
Status: NEW
Alias: CVE-2026-42389
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-25 14:01 UTC by OSIDB Bzimport
Modified: 2026-06-26 19:37 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-06-25 14:01:21 UTC 
This fix provides extra hardening for the 5.4.x branch by doing extra validation of incoming answers from authoritative servers.
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