🛡️ CVE-2022-24790
🔴 CVSS 9.5 — Critical ✅ No Known Exploit CWE-444 NVD
9.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Details

Severity CRITICAL
CVSS Score 9.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE CWE-444
Public Exploit ✅ No
Source NVD
Published 2022-03-30
Updated 2026-06-15
Modified 2024-11-21

Affected Packages

Software From version Fixed in
debian-linux
fedora
puma 4.3.12

References

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