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.
Published: 2022-03-30
Score: 9.1 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

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
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'}


Subscriptions

Debian Debian Linux
Fedoraproject Fedora
Puma Puma
Redhat Satellite Storage
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