Description
Puma is a Ruby/Rack web server built for parallelism. Prior to `puma` version `5.6.2`, `puma` may not always call `close` on the response body. Rails, prior to version `7.0.2.2`, depended on the response body being closed in order for its `CurrentAttributes` implementation to work correctly. The combination of these two behaviors (Puma not closing the body + Rails' Executor implementation) causes information leakage. This problem is fixed in Puma versions 5.6.2 and 4.3.11. This problem is fixed in Rails versions 7.02.2, 6.1.4.6, 6.0.4.6, and 5.2.6.2. Upgrading to a patched Rails _or_ Puma version fixes the vulnerability.
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
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Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-3023-1 | puma security update |
Debian DLA |
DLA-3083-1 | puma security update |
Debian DSA |
DSA-5146-1 | puma security update |
EUVD |
EUVD-2022-1175 | Puma is a Ruby/Rack web server built for parallelism. Prior to `puma` version `5.6.2`, `puma` may not always call `close` on the response body. Rails, prior to version `7.0.2.2`, depended on the response body being closed in order for its `CurrentAttributes` implementation to work correctly. The combination of these two behaviors (Puma not closing the body + Rails' Executor implementation) causes information leakage. This problem is fixed in Puma versions 5.6.2 and 4.3.11. This problem is fixed in Rails versions 7.02.2, 6.1.4.6, 6.0.4.6, and 5.2.6.2. Upgrading to a patched Rails _or_ Puma version fixes the vulnerability. |
Github GHSA |
GHSA-rmj8-8hhh-gv5h | Puma used with Rails may lead to Information Exposure |
Ubuntu USN |
USN-6682-1 | Puma vulnerabilities |
References
History
Sun, 13 Jul 2025 13:45:00 +0000
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2025-04-23T19:05:33.266Z
Reserved: 2022-01-19T00:00:00.000Z
Link: CVE-2022-23634
No data.
Status : Modified
Published: 2022-02-11T22:15:07.817
Modified: 2024-11-21T06:48:58.950
Link: CVE-2022-23634
OpenCVE Enrichment
No data.
Debian DLA
Debian DSA
EUVD
Github GHSA
Ubuntu USN