Ghostwire

CVE-2026-107720: fast-jwt: createVerifier accepts unsigned JWTs when key is '' or null and algorithms is explicitly set

HIGH CVSS 7.4 EPSS 0.26% Exploit Available 2 PoC

Published: October 8, 2026 | Last Modified: October 8, 2026

Description

fast-jwt: createVerifier accepts unsigned JWTs when key is '' or null and algorithms is explicitly set

Ghostwire Analysis — What This Means Practically

Exploitation Probability (EPSS): Low — 0.26% (16th percentile)

Low exploitation probability based on current threat landscape data. Standard patching timeline is appropriate.

This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.

Proof-of-Concept Exploits (2)

Security Coverage (1 articles)

References