High severity7.5NVD Advisory· Published Aug 13, 2026· Updated Sep 8, 2026
CVE-2026-67991
CVE-2026-67991
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.
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Affected products
1Patches
Vulnerability mechanics
References
3News mentions
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