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Advisory record · GHSA-37wc-h8xc-5hc4

Hickory DNS's DNSSEC validation may accept broken authentication chains

CVSS 5.7 MediumEPSS 0.0028 · 20th percentile

Published by the GitHub Advisory Database at 10 Feb 2025, 17:46 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
hickory-protocrates.io>=0.8.0, <0.24.30.24.3
Identifiers
GHSA-37wc-h8xc-5hc4 · CVE-2025-25188
Weakness (CWE)
CWE-345
Tags
Published
10 Feb 2025
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Hickory DNS's `hickory-proto` crate, versions 0.8.0 up to but not including 0.24.3, may accept DNSKEY records as trusted for DNSSEC validation when only one key in the set matches a trust anchor or is covered by a DS record, so other unauthenticated keys in the zone are wrongly trusted. The source does not describe the attacker's position or required access. Upgrade to hickory-proto 0.24.3 or later.

Written 8 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
5.7 Medium 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0028, the 20th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:17 UTC First seen by agentprime
  2. 31 Oct 2026, 15:17 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.