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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Advisories
Source ID Title
Debian DLA Debian DLA DLA-3083-1 puma security update
Debian DSA Debian DSA DSA-5146-1 puma security update
EUVD EUVD EUVD-2022-1439 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.
Github GHSA Github GHSA GHSA-h99w-9q5r-gjq9 Puma vulnerable to HTTP Request Smuggling
Ubuntu USN Ubuntu USN USN-6682-1 Puma vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 23 Apr 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-04-23T18:43:11.083Z

Reserved: 2022-02-10T00:00:00.000Z

Link: CVE-2022-24790

cve-icon Vulnrichment

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

cve-icon NVD

Status : Modified

Published: 2022-03-30T22:15:08.500

Modified: 2024-11-21T06:51:06.130

Link: CVE-2022-24790

cve-icon Redhat

Severity : Important

Publid Date: 2022-03-30T00:00:00Z

Links: CVE-2022-24790 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses