CVE-2026-67991 in RubyLLM

Riassunto

di MITRE • 13/08/2026

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.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

• Responsabile: MITRE
• Prenotare: 30/07/2026
• Divulgazione: 13/08/2026
• Moderazione: accettato
• Voce: VDB-389532
• CPE: pronto
• CWE: CWE-1333 (confermato)
• CVSS: 4.3 (VulDB)
• EPSS: 0.00000
• KEV: no
• Attività: molto basso
• Settore: Telecommunication, Education, ...

Fonti

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-67991
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-67991
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-67991/