---
id: CVE-2026-67989
title: >-
  crmne/ruby_llm at commit fa6f279847d6d7027814539d9c0dfc3bbdfd2a83 contains a
  polynomial-time regular expression denial-of-service condition in Mistral
  model capability matching on Ruby 3.1.x
summary: >-
  crmne/ruby_llm at commit fa6f279847d6d7027814539d9c0dfc3bbdfd2a83 contains a
  polynomial-time regular expression denial-of-service condition in Mistral
  model capability matching on Ruby 3.1.x
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-1333
published: '2026-10-02'
updated: '2026-10-02'
sourceUpdated: '2026-10-02T20:17:03.933'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-67989'
references:
  - url: 'https://github.com/crmne/ruby_llm'
    label: cve@mitre.org
  - url: >-
      https://github.com/crmne/ruby_llm/blob/fa6f279847d6d7027814539d9c0dfc3bbdfd2a83/lib/ruby_llm/providers/mistral/capabilities.rb#L92
    label: cve@mitre.org
  - url: >-
      https://github.com/crmne/ruby_llm/commit/dd3c84812598def03d4aff77b5447c41d8f5c34e
    label: cve@mitre.org
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-02T19:08:51.198673Z'
ingestedAt: '2026-10-02T16:22:59.536Z'
epss: 0.00339
epssPercentile: 0.2716
---

## Overview

crmne/ruby_llm at commit fa6f279847d6d7027814539d9c0dfc3bbdfd2a83 contains a polynomial-time regular expression denial-of-service condition in Mistral model capability matching on Ruby 3.1.x

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.