Descripción
fast-jwt provides fast JSON Web Token (JWT) implementation. In 6.1.0 and earlier, the publicKeyPemMatcher regex in fast-jwt/src/crypto.js uses a ^ anchor that is defeated by any leading whitespace in the key string, re-enabling the exact same JWT algorithm confusion attack that CVE-2023-48223 patched.
CVSS 9.1EPSS 0.23500000000000001%Riesgo 0.93
Ver fuente- Publicación
- 2026-04-06 16:16:38
- Versiones afectadas
- <=6.1.0
- Tipo
- Package
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N