Puma is a simple, fast, multi-threaded, parallel HTTP 1.1 server for Ruby/Rack applications. When using Puma behind a proxy that does not properly validate that the incoming HTTP request matches the RFC7230 standard, Puma and the frontend proxy may disagree on where a request starts and ends. This would allow requests to be smuggled via the front-end proxy to Puma. The vulnerability has been fixed in 5.6.4 and 4.3.12. Users are advised to upgrade as soon as possible. Workaround: when deploying a proxy in front of Puma, turning on any and all functionality to make sure that the request matches the RFC7230 standard.
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Wed, 23 Apr 2025 19:15:00 +0000
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2022-03-30T21:50:09.000Z
Updated: 2025-04-23T18:43:11.083Z
Reserved: 2022-02-10T00:00:00.000Z
Link: CVE-2022-24790

Updated: 2024-08-03T04:20:50.515Z

Status : Modified
Published: 2022-03-30T22:15:08.500
Modified: 2024-11-21T06:51:06.130
Link: CVE-2022-24790
