CVE-2026-67991
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | n/a |
| Product | n/a |
| Published | Aug 13, 2026 |
| Last Updated | Sep 4, 2026 |
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Affected Versions
n/a / n/a
n/a
References
github.com: https://github.com/crmne/ruby_llm github.com: https://github.com/crmne/ruby_llm/blob/fa6f279847d6d7027814539d9c0dfc3bbdfd2a83/lib/ruby_llm/utils.rb#L13 gist.github.com: https://gist.github.com/Zykis1024/9f2d68fa3fd4e3a0ab83063bbe61a8e2 github.com: https://github.com/crmne/ruby_llm/commit/9d75b033d7d00c4e1baa9b0afb4828faa8bd6602