https://github.com/rails/rails
At a glance
- Source
- NVD
- EPSS
- EPSS 1.71 % · percentile 77 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- hackerone
- NVD status
- Modified
Description
A regular expression based DoS vulnerability in Active Support <6.1.7.1 and <7.0.4.1. A specially crafted string passed to the underscore method can cause the regular expression engine to enter a state of catastrophic backtracking. This can cause the process to use large amounts of CPU and memory, leading to a possible DoS vulnerability.
Weaknesses (CWE)
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
Advisories
- GHSA-j6gc-792m-qgm2 — ReDoS based DoS vulnerability in Active Support's underscore
European references
- ENISA EUVD · EUVD-2023-0491
- GCVE · GCVE-0-2023-22796
CERT-FR advisories
- CERTFR-2026-AVI-0315 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0969 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:activesupport_project:activesupport:*:*:*:*:*:ruby:*:*< 6.1.7.1cpe:2.3:a:activesupport_project:activesupport:*:*:*:*:*:ruby:*:*≥ 7.0.0 < 7.0.4.1
Affected products
| Product | Versions |
|---|---|
| https://github.com/rails/rails | affected 6.1.7.1, 7.0.4.1 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |