Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2022-23634

22
FAUCET Score

CVE-2022-23634 describes an information leakage vulnerability affecting Puma web server versions prior to 5.6.2 and Ruby on Rails versions prior to 7.0.2.2. The issue arises when Puma fails to close response bodies, which, in conjunction with Rails' `CurrentAttributes` implementation, can lead to sensitive data exposure. This vulnerability carries a CVSS score of 5.9 (Medium) due to its network-based attack vector and high confidentiality impact, though it requires high attack complexity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.3.11CPE matchmatch criteria
cpe:2.3:a:puma:puma:*:*:*:*:*:ruby:*:*
>= 5.0.0, < 5.6.2CPE matchmatch criteria
cpe:2.3:a:puma:puma:*:*:*:*:*:ruby:*:*
>= 5.0.0, < 5.2.6.2CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
>= 6.0.0, < 6.0.4.6CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
>= 6.1.0, < 6.1.4.6CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.0HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
1.6
Impact Score
5.8
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.12%
Probability of exploitation in next 30 days
EPSS Percentile
80.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0212 is in the 67th percentile among its peer group of 19,955 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (8)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Satellite 6.11 for RHEL 7Fixed in: tfm-rubygem-puma-0:5.6.2-1.el7sat
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Satellite 6.11 for RHEL 8Fixed in: tfm-rubygem-puma-0:5.6.2-1.el8sat
View patch
rubygemspatch availablevia ghsa
Product: pumaFixed in: 5.6.2
rubygemspatch availablevia ghsa
Product: pumaFixed in: 4.3.11
redhatno patchvia redhat_api
Product: Red Hat Satellite 6Fixed in: tfm-rubygem-rails
redhatend of lifevia redhat_api
Product: CloudForms Management Engine 5Fixed in: rubygem-puma
redhatend of lifevia redhat_api
Product: CloudForms Management Engine 5Fixed in: rubygem-rails

Vendor Advisories (2)

rubygemsGHSA-rmj8-8hhh-gv5hhigh

Puma used with Rails may lead to Information Exposure

Feb 11, 2022
redhatCVE-2022-23634Important

rubygem-puma: rubygem-rails: information leak between requests

Feb 11, 2022

References

github.com / advisories/GHSA-rmj8-8hhh-gv5h
Third Party Advisory
github.com / advisories/GHSA-wh98-p28r-vrc9
MitigationNot ApplicableThird Party Advisory
github.com / puma/puma/commit/b70f451fe8abc0cff192c065d549778452e155bb
PatchThird Party Advisory
github.com / puma/puma/security/advisories/GHSA-rmj8-8hhh-gv5h
PatchThird Party Advisory
groups.google.com / g/ruby-security-ann/c/FkTM-_7zSNA/m/K2RiMJBlBAAJ
Mailing ListMitigationPatchThird Party Advisory
lists.debian.org / debian-lts-announce/2022/05/msg00034.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2022/08/msg00015.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/F6YWGIIKL7KKTS3ZOAYMYPC7D6WQ5OA5
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/L7NESIBFCNSR3XH7LXDPKVMSUBNUB43G
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/TUBFJ44NCKJ34LECZRAP4N5VL6USJSIB
security.gentoo.org / glsa/202208-28
Third Party Advisory
debian.org / security/2022/dsa-5146
Third Party Advisory