Arbitrary Code Execution Vulnerability in Mistral Vibe by Mistral Software
CVE-2026-87986

10CRITICAL

Key Information:

Vendor

Mistralai

Status
Mistral-vibe
Vendor
CVE Published:
11 September 2026

What is CVE-2026-87986?

The vulnerability in Mistral Vibe allows attackers to bypass command permission checks through certain shell constructs that the parser fails to interpret correctly. As a result, unparsed commands can be embedded and executed on a user's system without proper authorization, posing a significant security risk.

Affected Version(s)

mistral-vibe 1.3.4

References

https://www.hiddenlayer.com/sai-security-advisory/2026-09...

CVSS V4

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.