Vulnerability in Mistralai Mistral-Vibe
CVE-2026-116843
Mistral Vibe before 3.0.3 contains a remote code execution vulnerability that allows attackers to run commands by defining git filter drivers in an untrusted repository's .git/config. When started with --worktree, git worktree add applies .gitattributes and runs filter smudge, clean, or process commands before the trusted-folder check, executing attacker commands with user privileges.
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 (37.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.4% 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/blob/v2.24.1/vibe/core/worktree.py (technical-description)
- github.com/mistralai/mistral-vibe/commit/7bb48f213ac677f943d5c791199ed3dddf302f… (patch)
- github.com/mistralai/mistral-vibe/issues/997 (issue-tracking)
- github.com/mistralai/mistral-vibe/releases/tag/v3.0.3 (release-notes)
- www.vulncheck.com/advisories/mistral-vibe-before-3.0.3-rce-via-git-filter-drive… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-116843?
- CVE-2026-116843 is a high-severity vulnerability in Mistralai Mistral-Vibe, classified under Inclusion of Functionality from Untrusted Control Sphere. CVSS score: 8.8/10. Published 2026-10-27.
- How severe is CVE-2026-116843?
- High severity. CVSS v3 base score is 8.8 out of 10.