CVE-2026-87986
Published:September 11, 2026
Updated:October 13, 2026
An arbitrary code execution vulnerability in Mistral Vibe allows an attacker to bypass command permission checks using shell constructs it's parser cannot interpret. Unparsed portions are omitted from inspection, enabling embedded commands to execute on the user's system without approval.
Affected Packages
mistral-vibe (CONDA):
Affected version(s) >=1.3.4 <2.25.4Fix Suggestion:
Update to version 2.25.4https://github.com/mistralai/mistral-vibe.git (GITHUB):
Affected version(s) >=v1.3.4 <v2.25.4Fix Suggestion:
Update to version v2.25.4mistral-vibe (PYTHON):
Affected version(s) >=1.3.4 <2.25.4Fix Suggestion:
Update to version 2.25.4Related Resources (1)
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Contact UsCVSS v4
Base Score:
10
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
HIGH
CVSS v3
Base Score:
10
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Handling of Syntactically Invalid Structure
EPSS
Base Score:
0.56