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HIGH

CVE-2026-67623

Mistral Vibe < 2.23.3 Arbitrary Command Execution via git fsmonitor Hook

CVSS v3

8.8

HIGH

EPSS Score

1.1 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

none

SSVC status

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

Technical details

Published
2026-08-05
Last Modified
2026-08-06

Frequently asked questions

What is CVE-2026-67623?

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

Is CVE-2026-67623 actively exploited?

Active exploitation of CVE-2026-67623 has not been confirmed. Its EPSS score was 1.1% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-67623?

CVE-2026-67623 has a CVSS v3 base score of 8.8 (HIGH severity).

Is CVE-2026-67623 affecting your environment?

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