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OpenAdvisories
High · 8.8 CVE-2026-67623 EUVD-2026-53342GHSA-g6fr-w8c4-4935

Mistral Vibe < 2.23.3 Arbitrary Command Execution via git fsmonitor Hook

Published Aug 5, 2026 · Updated Nov 8, 2026 · Assigned by VulnCheck

Description

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

VendorProductAffectedFixed
mistralai mistral-vibe < 2.23.3 2.23.3

References