CVE-2026-87985 Command injection in mistral-vibe

Critical 10.0 Published Updated

Attackers can bypass command permission checks in Mistral Vibe using ANSI-C quoted arguments to execute arbitrary code on the user's system.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-87985?

CVE-2026-87985 is a critical command injection vulnerability in mistralai mistral-vibe, published on 11 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An arbitrary code execution vulnerability in Mistral Vibe allows an attacker to bypass command permission checks using ANSI-C quoted arguments. These arguments are not properly inspected, enabling a crafted allowlisted command to execute arbitrary code on the user's system without approval.

Weakness: CWE-184

Which versions are affected by CVE-2026-87985?

How do I fix CVE-2026-87985?

No fix has been published for CVE-2026-87985 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-87985 being exploited?

There is no known exploitation of CVE-2026-87985 in the wild and no public exploit code.

Sources

Also known as GHSA-8555-f52w-mpcf.

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