Vulnerability Database

296,733

Total vulnerabilities in the database

CVE-2022-24790

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 v3:

  • Severity: High
  • Score: 7.5
  • AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS v2:

  • Severity: Medium
  • Score: 5
  • AV:N/AC:L/Au:N/C:N/I:P/A:N

CWEs:

Software From Fixed in
puma / puma - 4.3.12
puma / puma 5.0.0 5.6.4
debian / debian_linux 10.0 10.0.x
debian / debian_linux 11.0 11.0.x
fedoraproject / fedora 35 35.x
fedoraproject / fedora 36 36.x
fedoraproject / fedora 37 37.x
Ruby icon puma 5.0.0 5.6.4
Ruby icon puma - 4.3.12