CVSS 3.1 Score 5.9 of 10 (medium)


Published Feb 13, 2024
Updated: Mar 6, 2024
CWE ID 288


CVE-2024-21491 is a vulnerability in versions of the package svix prior to 1.17.0, which allows for Authentication Bypass due to an issue in the verify function. This vulnerability can be exploited by an attacker who is aware that a victim uses the Rust library for verification and webhooks by a service that utilizes Svix. By providing a shorter signature that matches the beginning of the actual signature, the attacker can bypass signature verification. The potential danger posed to organizations is high integrity impact, as an attacker could manipulate or forge signatures, potentially leading to unauthorized access or data tampering. Remediation involves updating to version 1.17.0 or later of the svix package.

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