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CVE-2026-87988: CWE-732: Incorrect Permission Assignment for Critical Resource in mistralai mistral-vibe

0
Critical
VulnerabilityCVE-2026-87988cvecve-2026-87988cwe-732
Published: 09/11/2026 (09/11/2026, 14:35:34 UTC)
Source: CVE Database V5
Vendor/Project: mistralai
Product: mistral-vibe

Description

An arbitrary file access vulnerability in Mistral Vibe allows an attacker to bypass workspace restrictions through commands classified as unconditionally allowed. Missing path validation for these commands enables access to files outside the active workspace without user approval.

CVSS v4.0

Score 10.0critical

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vuln. Confidentiality
High
Vuln. Integrity
High
Vuln. Availability
High
Subsq. Confidentiality
High
Subsq. Integrity
High
Subsq. Availability
High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Affected software

mistralai

mistral-vibe

Affected versions
>=2.15.0
GitHub Actionsmore threats →cve
mistral-vibe
pkg:github/mistral-vibe
Affected versions
>=2.15.0

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/11/2026, 15:01:49 UTC

Technical Analysis

This vulnerability (CWE-732) in Mistral Vibe involves incorrect permission assignment for critical resources. Specifically, certain commands classified as unconditionally allowed lack proper path validation, which permits an attacker to bypass workspace boundaries and access arbitrary files outside the intended workspace environment. This can lead to unauthorized disclosure or manipulation of sensitive files. The vulnerability affects versions 2.15.0 and later. It has a CVSS 4.0 base score of 10.0, indicating critical severity with network attack vector, no required privileges or user interaction, and high impact on confidentiality, integrity, availability, and security requirements.

Potential Impact

An attacker can exploit this vulnerability remotely without authentication or user interaction to access arbitrary files outside the active workspace. This can result in unauthorized disclosure, modification, or deletion of sensitive files, severely compromising system confidentiality, integrity, and availability.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the affected Mistral Vibe versions and monitor for suspicious activity related to workspace command usage. Avoid running untrusted commands classified as unconditionally allowed.

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Technical Details

Data Version
5.2
Assigner Short Name
HiddenLayer
Date Reserved
2026-09-09T19:14:18.451Z
Cvss Version
4.0
State
PUBLISHED

Threat ID: 6aa4149991cc7f38484bd9b2

Added to database: 09/11/2026, 14:47:53 UTC

Last enriched: 09/11/2026, 15:01:49 UTC

Last updated: 09/11/2026, 16:30:39 UTC

Views: 5

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