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CVE-2026-45363: CWE-287: Improper Authentication in jwt ruby-jwtCVE-2026-45363 0 A critical authentication vulnerability exists in the ruby-jwt library prior to versions 2.10.3 and 3.2.0. The issue allows attacker-forged tokens to be accepted when decoding JWT tokens using the HS256, HS384, or HS512 algorithms with an empty key or when the key finder returns an empty or nil value. This occurs because OpenSSL::HMAC.digest returns a valid digest with an empty key, and no check prevents this condition. The vulnerability is fixed in ruby-jwt versions 2.10.3 and 3.2.0. Join the discussion | CVE Database V5 | 07/14/2026, 21:32:26 UTC Added: 07/14/2026, 21:48:16 UTC |
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