CVE-2023-48238

CVSS 3.1 Score 7.5 of 10 (high)

Details

Published Nov 17, 2023
Updated: Nov 29, 2023
CWE ID 345

Summary

CVE-2023-48238 is a vulnerability that affects the joaquimserafim/json-web-token JavaScript library used for interacting with JSON Web Tokens (JWT). In versions of the library, there is a vulnerability to a JWT algorithm confusion attack. This vulnerability allows an attacker to craft a malicious JWT token containing the HS256 algorithm and sign it with the public RSA key of the victim application. The attack can only be successful if the RS256 algorithm is in use. It is recommended to use this algorithm as a best practice. The vulnerability has a high severity rating, with an impact on integrity and no impact on confidentiality. There are 18 affected products listed, and the remediation for this vulnerability is not specified in the provided information.

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