PatchSiren

nearform CVE debriefs

These pages are published after PatchSiren validates generated defensive summaries against stored public CVE and source evidence.

CRITICAL nearform CVE published 2026-04-06

CVE-2026-35039

A critical vulnerability in fast-jwt, a JSON Web Token (JWT) implementation, allows for cache collisions due to improper cache key generation. This could lead to mis-identification of tokens and users. The vulnerability is caused by a custom cacheKeyBuilder method not creating unique keys for different tokens, leading to cache collisions. Defenders responsible for JWT-based authentication and authorizatio [truncated]