Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-jjhx-jhvp-74wq
Advisory ID github_osv/GHSA-jjhx-jhvp-74wq
Aliases CVE-2024-26142
Summary Rails has possible ReDoS vulnerability in Accept header parsing in Action Dispatch # Possible ReDoS vulnerability in Accept header parsing in Action Dispatch There is a possible ReDoS vulnerability in the Accept header parsing routines of Action Dispatch. This vulnerability has been assigned the CVE identifier CVE-2024-26142. Versions Affected: >= 7.1.0, < 7.1.3.1 Not affected: < 7.1.0 Fixed Versions: 7.1.3.1 Impact ------ Carefully crafted Accept headers can cause Accept header parsing in Action Dispatch to take an unexpected amount of time, possibly resulting in a DoS vulnerability. All users running an affected release should either upgrade or use one of the workarounds immediately. Ruby 3.2 has mitigations for this problem, so Rails applications using Ruby 3.2 or newer are unaffected. Releases -------- The fixed releases are available at the normal locations. Workarounds ----------- There are no feasible workarounds for this issue. Patches ------- To aid users who aren't able to upgrade immediately we have provided patches for the two supported release series. They are in git-am format and consist of a single changeset. * 7-1-accept-redox.patch - Patch for 7.1 series Credits ------- Thanks [svalkanov](https://hackerone.com/svalkanov) for the report and patch!
Status Published
Exploitability 0.5
Weighted Severity 0.0
Risk
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (0)
There are no known CWE.
System Score Found at
generic_textual LOW
Reference id Reference type URL
https://discuss.rubyonrails.org/t/possible-redos-vulnerability-in-accept-header-parsing-in-action-dispatch/84946
https://github.com/rails/rails
https://github.com/rails/rails/commit/b4d3bfb5ed8a5b5a90aad3a3b28860c7a931e272
CVE-2024-26142 https://nvd.nist.gov/vuln/detail/CVE-2024-26142
CVE-2024-26142.YML https://github.com/rubysec/ruby-advisory-db/blob/master/gems/actionpack/CVE-2024-26142.yml
GHSA-jjhx-jhvp-74wq https://github.com/rails/rails/security/advisories/GHSA-jjhx-jhvp-74wq

No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.

There are no known vectors.

Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2024-02-28T20:01:00Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2024/26xxx/CVE-2024-26142.json

Source Advisory: vulnrichment/CVE-2024-26142

View SSVC decision tree 
[{'Exploitation': 'poc'},
 {'Automatable': 'no'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]