Google: >> Firebase Php-Jwt >> 5.1.0 Security Vulnerabilities
In Firebase PHP-JWT before 6.0.0, an algorithm-confusion issue (e.g., RS256 / HS256) exists via the kid (aka Key ID) header, when multiple types of keys are loaded in a key ring. This allows an attacker to forge tokens that validate under the incorrect key. NOTE: this provides a straightforward way to use the PHP-JWT library unsafely, but might not be considered a vulnerability in the library itself.
CVSS Score
9.1
EPSS Score
0.01
Published
2022-03-29