CVE-2026-87986: Mistralai Mistral-Vibe

Critical severity, CVSS 10.0. EPSS: 0.6% chance of exploitation in the next 30 days.

An arbitrary code execution vulnerability in Mistral Vibe allows an attacker to bypass command permission checks using shell constructs it's parser cannot interpret. Unparsed portions are omitted from inspection, enabling embedded commands to execute on the user's system without approval.

Affected products

• Mistralai Mistral-Vibe: from 1.3.4

Published 2026-09-11. Last modified 2026-09-11.