GHSA-cg4j-q9v8-6v38Medium
Rails Active Support has a possible ReDoS vulnerability in number_to_delimited
🔗 CVE IDs covered (1)
📋 Description
Impact
NumberToDelimitedConverter used a regular expression with gsub! to insert thousands delimiters. This could produce quadratic time complexity on long digit strings.
Releases
The fixed releases are available at the normal locations.
Credit
This issue was responsibly reported by Hackerone researcher scyoon.
🎯 Affected products3
- rubygems/activesupport:>= 8.1.0.beta1, < 8.1.2.1
- rubygems/activesupport:>= 8.0.0.beta1, < 8.0.4.1
- rubygems/activesupport:< 7.2.3.1
🔗 References (10)
- https://github.com/rails/rails/security/advisories/GHSA-cg4j-q9v8-6v38
- https://github.com/rails/rails/commit/29154f1097da13d48fdb3200760b3e3da66dcb11
- https://github.com/rails/rails/commit/b54a4b373c6f042cab6ee2033246b1c9ecc38974
- https://github.com/rails/rails/commit/ec1a0e215efd27a3b3911aae6df978a80f456a49
- https://github.com/rails/rails/releases/tag/v7.2.3.1
- https://github.com/rails/rails/releases/tag/v8.0.4.1
- https://github.com/rails/rails/releases/tag/v8.1.2.1
- https://nvd.nist.gov/vuln/detail/CVE-2026-33169
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/activesupport/CVE-2026-33169.yml
- https://github.com/advisories/GHSA-cg4j-q9v8-6v38