The verify function in Encryption/Symmetric.php in Malcolm Fell jwt before 1.0.3 does not use a timing-safe function for hash comparison, which allows attackers to spoof signatures via a timing attack.
CVSS Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NEmarref Jwt
APPEmarrefβ€ 1.0.2
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CHECK WITH VENDOR
No clear patch data available. Check vendor references.
CWE