Vulnerability in Mistralai Mistral-Vibe
CVE-2026-122133
Mistral Vibe before 2.25.5 on Windows contains an untrusted search path vulnerability that allows attackers to execute code by placing git.exe in a repository root. Attackers can lure users into opening a crafted repository so SessionLogger and ProjectContextProvider run the malicious git.exe at session start before any trust prompt.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (31.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
The 30-day trend appears once there are two daily scores.
Affected products
Weakness classification (CWE)
References
- github.com/mistralai/mistral-vibe (product)
- github.com/mistralai/mistral-vibe/blob/v2.25.4/vibe/core/session/session_logger… (technical-description)
- github.com/mistralai/mistral-vibe/blob/v2.25.4/vibe/core/system_prompt.py (technical-description)
- github.com/mistralai/mistral-vibe/blob/v2.25.5/CHANGELOG.md (release-notes)
- github.com/mistralai/mistral-vibe/commit/c069ffa1e12fb5f2487b489217c40ab97721d5… (patch)
- github.com/mistralai/mistral-vibe/releases/tag/v2.25.5 (release-notes)
- www.vulncheck.com/advisories/mistral-vibe-before-2.25.5-on-windows-untrusted-se… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-122133?
- CVE-2026-122133 is a high-severity vulnerability in Mistralai Mistral-Vibe, classified under Uncontrolled Search Path Element. CVSS score: 8.8/10. Published 2026-11-04.
- How severe is CVE-2026-122133?
- High severity. CVSS v3 base score is 8.8 out of 10.