CVE-2026-67991

HighCVSS 7.5/10Last modified Sep 8, 2026

Description

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-1333

Affected software

No affected versions have been published.

Timeline

Published: Aug 13, 2026
Last modified: Sep 8, 2026
NVD status: Deferred

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