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CVE-2023-22792

24
FAUCET Score

CVE-2023-22792 is a regular expression-based Denial of Service (DoS) vulnerability affecting Action Dispatch in Ruby on Rails versions prior to 6.0.6.1, 6.1.7.1, and 7.0.4.1. Specially crafted cookies combined with a malicious X_FORWARDED_HOST header can trigger catastrophic backtracking in the regex engine, leading to high CPU and memory consumption. This vulnerability has a CVSS score of 7.5 (High), indicating it can be exploited remotely with low attack complexity to cause a complete denial of service. Currently, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.0.0, < 6.0.6.1CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
>= 6.1.0, < 6.1.7.1CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
>= 7.0.0, < 7.0.4.1CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.70%
Probability of exploitation in next 30 days
EPSS Percentile
74.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0169 is in the 57th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

redhatpatch availablevia redhat_api
Product: Red Hat Satellite 6.14 for RHEL 8Fixed in: rubygem-actionpack-0:6.1.7.3-1.el8sat
View patch
rubygemspatch availablevia ghsa
Product: actionpackFixed in: 5.2.8.15
rubygemspatch availablevia ghsa
Product: actionpackFixed in: 7.0.4.1
rubygemspatch availablevia ghsa
Product: actionpackFixed in: 6.1.7.1
redhatend of lifevia redhat_api
Product: Red Hat 3scale API Management Platform 2Fixed in: 3scale-amp-zync-container

Vendor Advisories (2)

redhatCVE-2023-22792Moderate

rubygem-actionpack: Denial of Service in Action Dispatch

Jan 20, 2023
rubygemsGHSA-p84v-45xj-wwqjlow

ReDoS based DoS vulnerability in Action Dispatch

Jan 18, 2023

References

discuss.rubyonrails.org / t/cve-2023-22792-possible-redos-based-dos-vulnerability-in-action-dispatch/82115
PatchVendor Advisory
security.netapp.com / advisory/ntap-20240202-0007
debian.org / security/2023/dsa-5372