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Advisory record · GHSA-22w3-693w-x895

webauthn-rs-core/webauthn-authenticator-rs: Origin validation mismatch possible when subdomains are allowed

CVSS 4.0, no score published

Published by the GitHub Advisory Database at 6 May 2026, 23:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
webauthn-rs-corecrates.io<0.5.5 || >=0.6.0-dev, <0.6.1-dev0.5.5, 0.6.1-dev
webauthn-authenticator-rscrates.io>=0.6.0-dev, <0.6.1-dev || <0.5.50.6.1-dev, 0.5.5
Identifiers
GHSA-22w3-693w-x895
Weakness (CWE)
CWE-1289
Tags
Published
6 May 2026
Updated
10 Sept 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
Not published None 4.0 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS No score.

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.