CVE-2025-30144

fast-jwt provides fast JSON Web Token JWT implementation. Prior to 5.0.6, the fast-jwt library does not properly validate the iss claim based on the RFC 7519. The iss issuer claim validation within the fast-jwt library permits an array of strings as a valid iss value. This design flaw enables a...

Fast-JWT Improperly Validates iss Claims

Summary The fast-jwt library does not properly validate the iss claim based on the RFC https://datatracker.ietf.org/doc/html/rfc7519page-9. Details The iss issuer claim validation within the fast-jwt library permits an array of strings as a valid iss value. This design flaw enables a potential...

CVE-2025-30144 Fast-JWT Improperly Validates iss Claims

fast-jwt provides fast JSON Web Token JWT implementation. Prior to 5.0.6, the fast-jwt library does not properly validate the iss claim based on the RFC 7519. The iss issuer claim validation within the fast-jwt library permits an array of strings as a valid iss value. This design flaw enables a...

CVE-2025-30144

CVE-2025-30144 affects the fast-jwt library prior to 5.0.6, where iss validation incorrectly accepts an array of strings as a valid issuer. This permissive check can let an attacker forge a JWT containing an issuer array like [host, https://valid-iss], which may be accepted by verifiers (especial...

CVE-2024-46612

IceCMS v3.4.7 and earlier versions contain a hardcoded JWT key, enabling an attacker to forge JWT authentication information. Affected component is the authentication/key handling within IceCMS. Impact is authenticated access forgery with high severity as described in cited sources; exploitation ...

AZL-11032 CVE-2022-39227 affecting package python-jwt for versions less than 2.4.0-2

python-jwt is a module for generating and verifying JSON Web Tokens. Versions prior to 3.3.4 are subject to Authentication Bypass by Spoofing, resulting in identity spoofing, session hijacking or authentication bypass. An attacker who obtains a JWT can arbitrarily forge its contents without knowi...

python-jwt vulnerable to token forgery with new claims

Impact An attacker who obtains a JWT can arbitrarily forge its contents without knowing the secret key. Depending on the application, this may for example enable the attacker to spoof other user's identities, hijack their sessions, or bypass authentication. Patches Users should upgrade to version...

PT-2022-24825 · Pypi · Python-Jwt

Name of the Vulnerable Software and Affected Versions: python-jwt versions prior to 3.3.4 Description: The issue allows an attacker who obtains a JSON Web Token JWT to arbitrarily forge its contents without knowing the secret key. This may enable the attacker to spoof other users' identities,...

CVE-2021-32631

CVE-2021-32631 affects the NIMBLE Common package. Before commit 3b96cb0293d3443b870351945f41d7d55cb34b53, it did not properly verify JWT signatures, enabling forging of valid JWTs and potential authentication bypasses. A patch was introduced in that commit; as a workaround, the parseClaimsJws met...

Jerome Gamez Firebase Admin SDK for PHP Access Control Error Vulnerability

Jerome Gamez Firebase Admin SDK for PHP is a PHP-based software development kit. An access control error vulnerability exists in the src/Firebase/Auth/IdTokenVerifier.php file in the Jerome Gamez Firebase Admin SDK for PHP versions 3.2.0 through 3.8.0, which stems from the program's failure to...