CVE-2024-24754: Mnapoli Bref

Critical severity, CVSS 9.8. EPSS: 0.6% chance of exploitation in the next 30 days.

Bref enable serverless PHP on AWS Lambda. When Bref is used with the Event-Driven Function runtime and the handler is a `RequestHandlerInterface`, then the Lambda event is converted to a PSR7 object. During the conversion process, if the request is a MultiPart, each part is parsed and its content added in the `$files` or `$parsedBody` arrays. The conversion process produces a different output compared to the one of plain PHP when keys ending with and open square bracket ([) are used. Based on the application logic the difference in the body parsing might lead to vulnerabilities and/or undefined behaviors. This vulnerability is patched in 2.1.13.

Affected products

• Mnapoli Bref: before 2.1.13 (fixed in 2.1.13)

Published 2024-02-01. Last modified 2026-06-17.