Back to Database
Status published
High
CVE-2024-26142
Rails possible ReDoS vulnerability in Accept header parsing in Action Dispatch
Vulnerability Description
Rails is a web-application framework. Starting in version 7.1.0, there is a possible ReDoS vulnerability in the Accept header parsing routines of Action Dispatch. This vulnerability is patched in 7.1.3.1. Ruby 3.2 has mitigations for this problem, so Rails applications using Ruby 3.2 or newer are unaffected.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2024-26142
Credits & Attribution
No credits recorded in the NVD database.
References
- https://github.com/rails/rails/security/advisories/GHSA-jjhx-jhvp-74wq
- https://github.com/rails/rails/commit/b4d3bfb5ed8a5b5a90aad3a3b28860c7a931e272
- https://discuss.rubyonrails.org/t/possible-redos-vulnerability-in-accept-header-parsing-in-action-dispatch/84946
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/actionpack/CVE-2024-26142.yml
- https://security.netapp.com/advisory/ntap-20240503-0003/
More from rails
View All →CVE-2025-55193
Active Record logging vulnerable to ANSI escape injection
Low
2.7
CVE-2024-54133
Possible Content Security Policy bypass in Action Dispatch
Low
2.3
CVE-2024-53989
Possible XSS vulnerability with certain configurations of rails-html-sanitizer 1.6.0
Low
2.3
CVE-2024-53988
Possible XSS vulnerability with certain configurations of rails-html-sanitizer 1.6.0
Low
2.3
CVE-2024-53987
Possible XSS vulnerability with certain configurations of rails-html-sanitizer 1.6.0
Low
2.3
Affected Vendor
rails
View all reports →Affected Software
rails
Vulnerable Versions:
>= 7.1.0, < 7.1.3.1
Timeline
Official Publish:
February 27th, 2024
Last Modified:
February 13th, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H