CVE-2026-67623: Mistral Vibe < 2.23.3 Arbitrary Command Execution via git fsmonitor Hook

Published Aug 5, 2026
·
Updated

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 Software

1 affected component
Mistral Vibe<2.23.3

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Mistral Vibe to a version that resolves this vulnerability.

    Fixed in 2.23.3

Event History

Aug 5, 2026
CVE Published
via MITRE·01:27 PM
Data Sourced
via MITRE·01:27 PM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

What is the severity of CVE-2026-67623?

The severity of CVE-2026-67623 is high, with a score of 8.8.

2

How do I fix CVE-2026-67623?

To fix CVE-2026-67623, upgrade Mistral Vibe to version 2.23.3 or later.

3

What type of vulnerability is CVE-2026-67623?

CVE-2026-67623 is an arbitrary command execution vulnerability.

4

What causes CVE-2026-67623?

CVE-2026-67623 is caused by a malicious core.fsmonitor hook in the .git/config file.

5

Can CVE-2026-67623 be exploited remotely?

Yes, CVE-2026-67623 can be exploited remotely by triggering git commands.

Company

Resources

Contact

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CVE-2026-67623 - Mistral Vibe < 2.23.3 Arbitrary Command Execution via git fsmonitor Hook - SecAlerts