This page tracks the Ubuntu fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-67987 →

UBUNTU-CVE-2026-67987

crmne/ruby_llm at commit fa6f279847d6d7027814539d9c0dfc3bbdfd2a83 contains polynomial-time regular expression denial-of-service conditions in think-ta...

Original description

The description as published by the source.

crmne/ruby_llm at commit fa6f279847d6d7027814539d9c0dfc3bbdfd2a83 contains polynomial-time regular expression denial-of-service conditions in think-tag response parsing on Ruby 3.1.x. A malicious or anomalous model response containing many unterminated tags can cause excessive CPU consumption in two consecutive regular expressions and delay chat-completion processing

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Ubuntu:26.10 ruby-llm

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

References

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