# CVE-2026-122133: Mistral Vibe untrusted search path code execution on Windows

Source: https://junglewise.ai/threats/cve-2026-122133-mistral-vibe-before-2-25-5-on-windows-contains-an-untrusted  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-04. Updated: 2026-11-04  
License: CC BY 4.0 with a link back

CVE-2026-122133 · Severity: high · CVSS 8.8 · Published 2026-11-04

Mistral Vibe is a minimal CLI coding agent that runs on Windows. Before version 2.25.5, it searches for the git.exe executable in an untrusted location (the repository root), allowing an attacker to embed a malicious git.exe in a crafted repository and achieve arbitrary code execution when a user opens it. The malicious executable runs during session initialization before any trust prompt appears.

Technologies: [Mistral Vibe](https://junglewise.ai/threats/technologies/vibe). Vendors: [Mistral](https://junglewise.ai/threats/vendors/mistral).

## Quick answers

**Is CVE-2026-122133 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-122133 being exploited in the wild.

**How severe is CVE-2026-122133?** High severity, with a CVSS score of 8.8, published 4 November 2026.

**Which products and versions are affected?** Mistral Vibe before 2.25.5.

**Is there a fix for CVE-2026-122133?** Yes: fixed in 2.25.5. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-122133 attacked?** It is attacked over the network or with local access, in a software library.

**Am I affected by CVE-2026-122133?** Check whether you run Mistral Vibe at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 2.25.5

## Technical details

The SessionLogger and ProjectContextProvider components in Mistral Vibe before 2.25.5 use an untrusted search path on Windows to locate git.exe, allowing directory hijacking attacks. An attacker crafts a repository containing a malicious git.exe in the root directory; when a user opens it in Mistral Vibe, the application executes the attacker's binary at session start without user confirmation. This requires user interaction (opening the repository) but provides immediate arbitrary code execution with the privileges of the user running Mistral Vibe.

## Affected products

- Mistral Vibe before 2.25.5

## Timeline

- 2026-11-04: disclosed

## References

- [https://github.com/mistralai/mistral-vibe](https://github.com/mistralai/mistral-vibe)
- [https://github.com/mistralai/mistral-vibe/blob/v2.25.4/vibe/core/session/session_logger.py](https://github.com/mistralai/mistral-vibe/blob/v2.25.4/vibe/core/session/session_logger.py)

## Related threats

- [Mistral Vibe remote code execution in repository configuration](https://junglewise.ai/threats/cve-2026-122135-mistral-vibe-before-3-0-3-contains-a-remote-code-execution)
- [Mistral Vibe remote code execution via malicious Git filters](https://junglewise.ai/threats/cve-2026-122134-mistral-vibe-before-2-25-7-contains-a-remote-code-execution)
- [Mistral Vibe remote code execution in git worktree handling](https://junglewise.ai/threats/cve-2026-116843-mistral-vibe-before-3-0-3-contains-a-remote-code-execution)
- [Mistral Vibe command permission gate bypass in bash parsing](https://junglewise.ai/threats/cve-2026-109429-mistral-vibe-before-2-25-4-contains-a-command-permission-gate)
- [Mistral Vibe remote code execution in worktree creation](https://junglewise.ai/threats/cve-2026-93993-mistral-vibe-before-2-25-5-contains-a-remote-code-execution)