Package impact

npm npm / fast-jwt

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CVE Severity CVSS Risk Flags OS Vendor Published Description
CVE-2026-44351 critical 9.1 9.1 16d ago fast-jwt: JWT auth bypass due to empty HMAC secret accepted by async key resolver
CVE-2026-35041 unknown 2mo ago fast-jwt has a ReDoS when using RegExp in allowed* leading to CPU exhaustion during token verification
CVE-2026-35040 unknown 2mo ago fast-jwt: Stateful RegExp (/g or /y) causes non-deterministic allowed-claim validation (logical DoS)
CVE-2026-35042 unknown 2mo ago fast-jwt accepts unknown `crit` header extensions (RFC 7515 violation)
CVE-2026-35039 unknown 2mo ago fast-jwt: Cache Confusion via cacheKeyBuilder Collisions Can Return Claims From a Different Token (Identity/Authorization Mixup)
CVE-2026-34950 unknown 2mo ago fast-jwt: Incomplete fix for CVE-2023-48223: JWT Algorithm Confusion via Whitespace-Prefixed RSA Public Key
CVE-2025-30144 unknown 1y ago Fast-JWT Improperly Validates iss Claims
CVE-2023-48223 unknown 3y ago JWT Algorithm Confusion