CVE-2026-67623: Mistralai Mistral-Vibe

High severity, CVSS 8.8. EPSS: 1.1% chance of exploitation in the next 30 days.

Mistral Vibe before 2.23.3 contains a remote code execution vulnerability that allows attackers to execute arbitrary commands by embedding a malicious core.fsmonitor hook in a repository's .git/config file, which is triggered when vibe invokes git status --porcelain without suppressing hook execution. Attackers can distribute or create a crafted repository containing a malicious fsmonitor entry to achieve arbitrary command execution with the victim's full privileges when any vibe command is run inside that repository.

Affected products

• Mistralai Mistral-Vibe: before 2.23.3 (fixed in 2.23.3)

Published 2026-08-05. Last modified 2026-09-24.