CVE-2026-67989

HighCVSS 7.5

Published: 02/10/2026(UTC)Updated: 02/10/2026(UTC)Translated: 02/10/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.34%

25th percentile - higher than 25% of all known CVEs

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

Risk Assessment

Risk of DoS attacks on applications using ruby_llm, potentially causing service unavailability.

Recommendation

Update ruby_llm to a version containing a fix or avoid using Ruby 3.1.x with this library.

Other vulnerabilities in ruby_llm

CVE-2026-67991High
crmne/ruby_llm at commit fa6f279847d6d7027814539d9c0dfc3bbdfd2a83 contains a polynomial-time regular expression denial-of-service condition in RubyLLM::Utils.underscore on Ruby 3.1.x. A very long crafted class, agent, or tool name can cause excessive CPU consumption and a denial of service.

Original NVD description (English source)

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

Vulnerability data from NVD (NIST) · CISA KEV · EPSS