CVE-2026-67989: High severity crmne ruby_llm vulnerability

Published Oct 2, 2026
·
Updated

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

Affected Software

2 affected components
crmne ruby_llm=fa6f279847d6d7027814539d9c0dfc3bbdfd2a83
Ruby Ruby>=3.1.0<3.2.0

Event History

Oct 2, 2026
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via NVD·04:16 PM
DescriptionSeverityWeakness

Frequently Asked Questions

1

Which deployments are exposed to this issue?

The affected code is the Mistral model capability matching logic in crmne/ruby_llm at commit fa6f279847d6d7027814539d9c0dfc3bbdfd2a83, when running on Ruby 3.1.x. Deployments that do not exercise this Mistral capability-matching path are not identified by the provided data as exposed.

2

What is required to trigger the denial of service?

The issue is a polynomial-time regular expression denial-of-service condition in Mistral model capability matching. The provided data does not specify the exact input source, attacker access level, or triggering string.

3

Is a fix identified?

A subsequent crmne/ruby_llm commit, dd3c84812598def03d4aff77b5447c41d8f5c34e, is referenced. The provided data does not state which release includes it or describe any mitigation for environments that cannot apply the fix immediately.

Contact

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