CVE-2026-87987
An arbitrary code execution flaw in Mistral Vibe lets attackers bypass command permission checks by inserting environment variable assignments before allowlisted commands. These assignments are ignored during inspection, allowing attacker‑controlled variables to trigger code execution without user approval.
No official fix yet. If none appears within 45 days of first tracking, this entry is removed automatically.
Who is affected
Mistral Vibe users who run allowlisted commands; no specific version information is available.
Real-world impact
An attacker can run any code on the affected system, potentially taking full control, stealing data, or disrupting services, all without the user’s knowledge.
Why this severity
The CVSS score of 10 reflects the vulnerability’s ability to compromise confidentiality, integrity, and availability, combined with its low attack complexity and no user interaction required.
What to do about it
No official fix or mitigation is documented in the sources yet. Monitor the vendor advisory and apply the patch as soon as it is released.
No fix documented in sources