6 matches found
ruby-jwt: Empty-key HMAC bypass; cross-language sibling of CVE-2026-44351
JWT.decodetoken, '', true, algorithm: 'HS256' accepts an attacker-forged token. OpenSSL::HMAC.digest'SHA256', '', payload returns a valid digest under an empty key, and no raise InvalidKeyError if key.empty? precondition exists in the HMAC algorithm. JWT.decodetoken, "", true, algorithm: 'HS256' ...
CVE-2026-44351
fast-jwt provides fast JSON Web Token JWT implementation. Prior to 6.2.4, a critical authentication-bypass vulnerability in fast-jwt's async key-resolver flow allows any unauthenticated attacker to forge arbitrary JWTs that are accepted as authentic. When the application's key resolver returns an...
CVE-2026-44351
fast-jwt provides fast JSON Web Token JWT implementation. Prior to 6.2.4, a critical authentication-bypass vulnerability in fast-jwt's async key-resolver flow allows any unauthenticated attacker to forge arbitrary JWTs that are accepted as authentic. When the application's key resolver returns an...
@jsprismarine/client (>=0.12.2-unstable-20250320195345, <=0.13.1), @jsprismarine/prismarine (>=0.12.2-unstable-20250320195345, <=0.13.1) +1 more potentially affected by CVE-2026-44351 via fast-jwt (>=6.0.0, <=6.0.1)
fast-jwt NPM version =6.0.0, =0.12.2-unstable-20250320195345, =0.12.2-unstable-20250320195345, =0.12.2-unstable-20250320195345, =0.13.1 Source cves: CVE-2026-44351 Source advisory: SNYK:JS-FASTJWT-16439016...
@jsprismarine/client (>=0.12.2-unstable-20250320195345, <=0.13.1), @jsprismarine/prismarine (>=0.12.2-unstable-20250320195345, <=0.13.1) +1 more potentially affected by CVE-2026-44351 via fast-jwt (>=6.0.0, <=6.0.1)
fast-jwt NPM version =6.0.0, =0.12.2-unstable-20250320195345, =0.12.2-unstable-20250320195345, =0.12.2-unstable-20250320195345, =0.13.1 Source cves: CVE-2026-44351 Source advisory: OSV:GHSA-GMVF-9V4P-V8JC...
