cve.bz

CVE-2022-23634

5.9 mediumEPSS 2.1%

Medium (5.9). EPSS 2.1% chance of exploitation in the next 30 days. Fixed in puma 4.3.11, 5.6.2.

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.

Severity

CVSS 3.1

5.9 medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
2.1% chance of exploitation in the next 30 days; higher than 81% of CVEs (scores of 2026-10-31)
CWEs
CWE-404, CWE-200
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-rmj8-8hhh-gv5hRubyGemspuma>=5.0.0 <5.6.25.6.2
GHSA-rmj8-8hhh-gv5hRubyGemspuma<4.3.114.3.11

References

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