Authentication Bypass Affecting pdns-recursor package, versions <5.2.5-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.27% (19th percentile)

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  • Snyk IDSNYK-ALPINE322-PDNSRECURSOR-13659097
  • published23 Oct 2025
  • disclosed9 Feb 2026

Introduced: 23 Oct 2025

CVE-2025-59023  (opens in a new tab)
CWE-294  (opens in a new tab)

How to fix?

Upgrade Alpine:3.22 pdns-recursor to version 5.2.5-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream pdns-recursor package and not the pdns-recursor package as distributed by Alpine. See How to fix? for Alpine:3.22 relevant fixed versions and status.

Crafted delegations or IP fragments can poison cached delegations in Recursor.