Vulnerability details

CVE-2026-93993

mistralai mistral-vibe

Mistral Vibe before 2.25.5 Remote Code Execution via git post-checkout

CVSS 4.0

8.6High

Official description

Mistral Vibe before 2.25.5 contains a remote code execution vulnerability in the worktree creation process that executes git hooks before trust validation. Attackers can supply a repository with a crafted post-checkout hook that executes arbitrary shell commands with the privileges of the user running Vibe.

CVSS scores

Score	Version	Source	Vector
8.6High	4.0	CVEProject cvelistV5 (CNA) (VulnCheck)	`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`
8.8High	3.1	CVEProject cvelistV5 (CNA) (VulnCheck)	`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`

Affected products

Vendor	Product	Versions	Source
mistralai	mistral-vibe	v < 2.25.5	CVEProject cvelistV5 (CNA)

References and advisories

https://github.com/mistralai/mistral-vibe/commit/c069ffa1e12fb5f2487b489217c40ab97721d553 patch
https://github.com/mistralai/mistral-vibe/releases/tag/v2.25.5 release-notes
https://github.com/mistralai/mistral-vibe/blob/19b5b74faa78d0816b8d4d4c7d7543fc3520678c/vibe/core/git/repo.py#L411-L431 technical-description
https://github.com/mistralai/mistral-vibe product
https://www.vulncheck.com/advisories/mistral-vibe-before-2.25.5-remote-code-execution-via-git-post-checkout third-party-advisory
https://github.com/mistralai/mistral-vibe/issues/996 issue-tracking

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Details

Published: 2026-09-20
Last updated: 2026-09-21
State: Published
Assigner (CNA): VulnCheck

Exploit prediction (EPSS)

0.77%

Probability of exploitation in 30 days

55.8%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: Proof of concept
Technical impact: Total

Weaknesses (CWE)

CWE-829
Inclusion of Functionality from Untrusted Control Sphere