CVE-2026-67623

high

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.

References

Exploits
More

https://therealcoiffeur.com/c111011.html

https://github.com/mistralai/mistral-vibe/issues/942

https://www.vulncheck.com/advisories/mistral-vibe-arbitrary-command-execution-via-git-fsmonitor-hook

https://github.com/mistralai/mistral-vibe/releases/tag/v2.23.3

https://github.com/mistralai/mistral-vibe/pull/978

https://github.com/mistralai/mistral-vibe/pull/962

https://github.com/mistralai/mistral-vibe/commit/68ff32e6a92e80a874c8153312f0aa8ae4955477

Details

Source: Mitre, NVD

Published: 2026-08-05

Updated: 2026-08-06

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 8.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High

CVSS v4

Base Score: 8.6

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.00516