CVE-2026-87988 - Vulnerability Details - OpenCVE

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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact High

Subsequent System Integrity Impact High

Subsequent System Availability Impact High

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable yes

Technical Impact total

Vendors	Products
Mistral	Mistral-vibe

No data.

No data.

References

Link	Providers
https://www.hiddenlayer.com/sai-security-advisory/2026-09-mistral-vibe6

History

Sun, 13 Sep 2026 19:30:00 +0000

Type	Values Removed	Values Added
First Time appeared		Mistral Mistral mistral-vibe
Vendors & Products		Mistral Mistral mistral-vibe

Fri, 11 Sep 2026 16:30:00 +0000

Type	Values Removed	Values Added
Title		Unrestricted File Access via Unvalidated Commands in Mistral Vibe
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Fri, 11 Sep 2026 14:45:00 +0000

Type	Values Removed	Values Added
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.
Weaknesses		CWE-732
References		https://www.hiddenlayer.com/sai-security-advisory/2026-09-mistral-vibe6
Metrics		cvssV4_0 `{'score': 10, 'vector': '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'}`

MITRE

Status: PUBLISHED

Assigner: HiddenLayer

Published: 2026-09-11T14:35:34.416Z

Updated: 2026-09-11T15:00:26.484Z

Reserved: 2026-09-09T19:14:18.451Z

Link: CVE-2026-87988

Vulnrichment

Updated: 2026-09-11T15:00:21.220Z

NVD

Status : Deferred

Published: 2026-09-11T15:17:07.930

Modified: 2026-09-11T17:35:21.440

Link: CVE-2026-87988

Redhat

No data.

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