High severity · published Aug 5, 2026
CVE-2026-67623
Mistral Vibe < 2.23.3 Arbitrary Command Execution via git fsmonitor Hook
8.8
CVSS
1.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 64% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MI
mistral-vibe · mistralai
before 2.23.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-67623
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-67623
github.com
https://github.com/mistralai/mistral-vibe/commit/68ff32e6a92e80a874c8153312f0aa8ae4955477
github.com
https://github.com/mistralai/mistral-vibe/issues/942
github.com
https://github.com/mistralai/mistral-vibe/pull/962
github.com
https://github.com/mistralai/mistral-vibe/pull/978
github.com
https://github.com/mistralai/mistral-vibe/releases/tag/v2.23.3
therealcoiffeur.com
https://therealcoiffeur.com/c111011.html
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