10 matches found
CVE-2026-29000
CVE-2026-29000: Proof of Concept PoC for pac4j-jwt Auth Bypass ⚠️ Disclaimer This tool is for educational and ethical security testing purposes only. I do not and will not support threat acting in any way, shape or form. Use at your own risk. This is also my first PoC, so be nice please. This is...
CVE-2026-107720
fast-jwt provides fast JSON Web Token JWT implementation. Prior to 6.3.1, fast-jwt createVerifier accepts an unsigned JWT when key is an empty string or null and algorithms is a non-empty allowlist. Falsy synchronous keys bypass prepareKeyOrSecret, allowedAlgorithms remains active, hasKey is fals...
Improper Verification of Cryptographic Signature
Overview fast-jwt is a Fast JSON Web Token implementation Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via createVerifier in src/verifier.js, when an empty string or null is passed as the key option. Because the falsy-key branch skipped key...
CVE-2026-107720 fast-jwt: createVerifier accepts unsigned JWTs when key is '' or null and algorithms is explicitly set
fast-jwt provides fast JSON Web Token JWT implementation. Prior to 6.3.1, fast-jwt createVerifier accepts an unsigned JWT when key is an empty string or null and algorithms is a non-empty allowlist. Falsy synchronous keys bypass prepareKeyOrSecret, allowedAlgorithms remains active, hasKey is fals...
CVE-2026-107720 fast-jwt: createVerifier accepts unsigned JWTs when key is '' or null and algorithms is explicitly set
fast-jwt provides fast JSON Web Token JWT implementation. Prior to 6.3.1, fast-jwt createVerifier accepts an unsigned JWT when key is an empty string or null and algorithms is a non-empty allowlist. Falsy synchronous keys bypass prepareKeyOrSecret, allowedAlgorithms remains active, hasKey is fals...
CVE-2026-107720
The fast-jwt library (prior to version 6.3.1 ) contains a vulnerability in the createVerifier function where it incorrectly accepts unsigned JWTs. When a falsy synchronous key (such as an empty string or null) is provided alongside a non-empty algorithms allowlist , the library bypasses the prepa...
CVE-2026-107720
fast-jwt provides fast JSON Web Token JWT implementation. Prior to 6.3.1, fast-jwt createVerifier accepts an unsigned JWT when key is an empty string or null and algorithms is a non-empty allowlist. Falsy synchronous keys bypass prepareKeyOrSecret, allowedAlgorithms remains active, hasKey is fals...
CVE-2026-107720 fast-jwt: createVerifier accepts unsigned JWTs when key is '' or null and algorithms is explicitly set
fast-jwt provides fast JSON Web Token JWT implementation. Prior to 6.3.1, fast-jwt createVerifier accepts an unsigned JWT when key is an empty string or null and algorithms is a non-empty allowlist. Falsy synchronous keys bypass prepareKeyOrSecret, allowedAlgorithms remains active, hasKey is fals...
CVE-2026-107720: Improper Input Validation
fast-jwt provides fast JSON Web Token JWT implementation. Prior to 6.3.1, fast-jwt createVerifier accepts an unsigned JWT when key is an empty string or null and algorithms is a non-empty allowlist. Falsy synchronous keys bypass prepareKeyOrSecret, allowedAlgorithms remains active, hasKey is fals...
