En resumen
- CVE-2026-39831 es una vulnerabilidad CRÍTICO (CVSS 9.1) que afecta a golang.org/x/crypto, crypto (golang).
- Probabilidad de explotación en los próximos 30 días (EPSS): 0.48%, mayor que el 41.3% de las vulnerabilidades.
- Solución: actualizar a 0.52.0 o posterior.
Description
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.
NVD description
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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