# CVE-2026-116843: Mistral Vibe before 3.0.3 RCE via Git Filter Drivers in Worktree Mode


- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Fix available:** No
- **Published:** 27 Oct 2026
- **Updated:** 27 Oct 2026
- **Also known as:** GHSA-xwx6-2mm7-g8wj

## What is CVE-2026-116843?

CVE-2026-116843 is a high-severity vulnerability in mistralai mistral-vibe, published on 27 Oct 2026. 

### Official description

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.

Weakness: CWE-829 (Inclusion of Functionality from Untrusted Control Sphere)

## Which versions are affected by CVE-2026-116843?


## How do I fix CVE-2026-116843?

No fix has been published for CVE-2026-116843 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-116843 being exploited?

There is no known exploitation of CVE-2026-116843 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-116843 and fix it if it is affected.

What it is: CVE-2026-116843 is a high-severity vulnerability in mistralai mistral-vibe, published on 27 Oct 2026. 
Exploitation: There is no known exploitation of CVE-2026-116843 in the wild and no public exploit code.

Affected product: mistralai mistral-vibe. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-116843/ (Markdown: https://insights.sbomify.com/CVE-2026-116843/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-116843
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-116843
- OSV: https://osv.dev/vulnerability/CVE-2026-116843

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-116843/
Summaries are generated and may contain mistakes; the official description above is the record.