Mistral Vibe < 2.23.3 Arbitrary Command Execution via git fsmonitor Hook
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-829.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA mistral-vibe (mistralai) Fixed in 2.23.3
Timeline
- 2026-10-02 Threatist record created from CVE-2026-67623
- 2026-10-03 Alias added: GHSA-g6fr-w8c4-4935
References
More mistralai vulnerabilities
- TI-2026-81009 Remote code execution in Mistral Vibe via Git filter drivers CVSS 4.0HIGH 8.7
- TI-2026-63252 Mistral Vibe before 2.25.5 Remote Code Execution via git post-checkout CVSS 4.0HIGH 8.6
- TI-2026-60017 An arbitrary code execution vulnerability in Mistral Vibe allows an attacker to bypass… CVSS 4.0CRITICAL 10.0
- TI-2026-60016 An arbitrary code execution vulnerability in Mistral Vibe allows an attacker to bypass… CVSS 4.0CRITICAL 10.0
- TI-2026-60015 An arbitrary code execution vulnerability in Mistral Vibe allows an attacker to bypass… CVSS 4.0CRITICAL 10.0
- TI-2026-60018 Incorrect permission assignment in mistralai mistral-vibe CVSS 4.0CRITICAL 10.0
Sources
- CVE-2026-67623 · CVE Program
- CVE-2026-67623 · NVD
- FIRST EPSS
- GHSA-g6fr-w8c4-4935 · GitHub Advisory Database · CC BY 4.0
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