CVE record
CVE-2026-39831
The Verify() method for FIDO/U2F security key types ([email protected], [email protected]) did not check the User Presence flag. Signatures generated without physical touch were accepted, allowing unattended use of a hardware security key. To restore the previous behavior, return a "no-touch-required" extension in Permissions.Extensions from PublicKeyCallback.
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Vulnerability metadata
- Published
- 2026-05-21T22:46:22.553Z
- Modified
- 2026-05-21T22:46:22.553Z
- EPSS
- Not available
- Vector
- Not available
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