DEBIAN-CVE-2022-24790

Advisory lineage Upstream: 1 Downstream: 2
Upstream
CVE-2022-24790
Published: 30 Mar 2022, 22:15
Last modified:28 Apr 2026, 20:24

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

30 Mar 2022, 22:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:24
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected Systems

  • debian•puma

    < 4.3.8-1+deb11u2 | < 5.6.4-1 | < 5.6.4-1 | < 5.6.4-1

References (1)