Vulnerability in Mistralai Mistral-Vibe
CVE-2026-122134
Mistral Vibe before 2.25.7 contains a remote code execution vulnerability that allows attackers to run commands by configuring malicious Git clean or process filter drivers in a repository. When a user opens a crafted repository, ProjectContextProvider._fetch_git_status runs git status at startup, invoking the filters and executing commands with user privileges before any trust prompt.
Published .
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: 0.005 (40.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 40.9% 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/v2.25.5/vibe/core/system_prompt.py (technical-description)
- github.com/mistralai/mistral-vibe/blob/v2.25.7/CHANGELOG.md (release-notes)
- github.com/mistralai/mistral-vibe/commit/4a96003186b166d55b9f06895c45bb136eef61… (patch)
- github.com/mistralai/mistral-vibe/releases/tag/v2.25.7 (release-notes)
- www.vulncheck.com/advisories/mistral-vibe-before-2.25.7-code-execution-via-git-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-122134?
- CVE-2026-122134 is a high-severity vulnerability in Mistralai Mistral-Vibe, classified under Inclusion of Functionality from Untrusted Control Sphere. CVSS score: 8.8/10. Published 2026-11-04.
- How severe is CVE-2026-122134?
- High severity. CVSS v3 base score is 8.8 out of 10.