CVE-2026-87987
Critical
Description
An arbitrary code execution vulnerability in Mistral Vibe allows an attacker to bypass command permission checks using environment variable assignments preceding allowlisted commands. These assignments are excluded from inspection, enabling attacker-controlled environment variables to cause arbitrary code execution without user approval.
SeverityCritical
CVSS10.0
Exploit probability—
ProductMistralai Mistral-vibe
PublishedSep 11, 2026
First seenSep 11, 2026
Weakness typeCWE-15CWE-15
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mistralai mistral-vibe | 2.6.0 | — |
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