Vulnerability · Published Nov 4, 2026 · Assigned by VulnCheck
CVE-2026-122135Mistral Vibe before 3.0.3 RCE via Repository-Configured gpg.program
High 8.8
In plain English
A high-severity security flaw in mistral-vibe from mistralai. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.5%top 59.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Mistral Vibe before 3.0.3 contains a remote code execution vulnerability that allows attackers to run commands by abusing repository-configured gpg.program during project context collection. A crafted repository setting gpg.program and log.showSignature with a signed commit makes git log execute the attacker's program at session start, before any trust prompt.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| mistralai | mistral-vibe | 0 – before 3.0.3 |
Weakness: CWE-829 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
- Patch Commit patch
- https://github.com/mistralai/mistral-vibe product
- https://github.com/mistralai/mistral-vibe/blob/v3.0.3/CHANGELOG.md?plain=1#L113 release-notes
- mistral-vibe v3.0.3 Release Notes release-notes
- https://github.com/mistralai/mistral-vibe/blob/v3.0.2/vibe/core/system_prompt.py#L52-L67 technical-description
- VulnCheck Advisory: Mistral Vibe before 3.0.3 RCE via Repository-Configured gpg.program third-party-advisory