CVE-2026-42389 (GCVE-0-2026-42389)

Vulnerability from cvelistv5 – Published: 2026-06-25 13:16 – Updated: 2026-06-25 14:58
VLAI?
Title
Reject more queries with invalid header values
Summary
This fix provides extra hardening for the 5.4.x branch by doing extra validation of incoming answers from authoritative servers.
Severity ?
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CWE
  • Improper Input Validation
Assigner
OX
References
Impacted products
Vendor Product Version
PowerDNS Recursor Affected: 5.4.0 , < 5.4.3 (semver)
Create a notification for this product.
Credits
Xiang Li, Mingming Zhang, Fasheng Miao, Zuyao Xu from AOSP Lab, Nankai University, Zhongguancun Lab, Tsinghua University
Show details on NVD website
To clipboard 

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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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