CVSS 3.1 Score 4.8 of 10 (medium)


Published Feb 1, 2024
Updated: Feb 9, 2024
CWE ID 436


CVE-2024-24753 is a vulnerability that affects Bref, a serverless PHP framework used on AWS Lambda. When Bref is combined with an API Gateway in v2 format, it fails to handle multiple values headers properly. This means that if PHP generates a response with multiple headers having the same key but different values, only the latest one will be retained. This can lead to a decrease in application security if multiple headers are relied upon for security reasons. The vulnerability has been patched in version 2.1.13 of Bref. The danger posed by this vulnerability is rated as medium with a base score of 4.8 out of 10, and it requires no privileges or user interaction to exploit. It has a high attack complexity and low impact on integrity and confidentiality.

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