CVE-2026-67991

UNKNOWN 0.0

CVSS Score

0.0

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	Aug 13, 2026

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Affected Versions

n/a / n/a

n/a

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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