CVE-2026-87983 - Vulnerability Details - OpenCVE

An arbitrary file read vulnerability in Mistral Vibe, introduced in version 2.6.0, allows an attacker to bypass workspace restrictions using quoted absolute paths in allowlisted shell commands. Improper handling of quotation marks during path validation enables files outside the active workspace to be read 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 None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact High

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

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 partial

Vendors	Products
Mistral	Mistral-vibe

No data.

No data.

References

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

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		Arbitrary File Read via Quoted Absolute Paths in Mistral Vibe 2.6.0
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

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

Type	Values Removed	Values Added
Description		An arbitrary file read vulnerability in Mistral Vibe, introduced in version 2.6.0, allows an attacker to bypass workspace restrictions using quoted absolute paths in allowlisted shell commands. Improper handling of quotation marks during path validation enables files outside the active workspace to be read without user approval.
Weaknesses		CWE-22
References		https://www.hiddenlayer.com/sai-security-advisory/2026-09-mistral-vibe
Metrics		cvssV4_0 `{'score': 9.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N'}`

MITRE

Status: PUBLISHED

Assigner: HiddenLayer

Published: 2026-09-11T14:22:46.114Z

Updated: 2026-09-11T14:57:02.035Z

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

Link: CVE-2026-87983

Vulnrichment

Updated: 2026-09-11T14:55:08.917Z

NVD

Status : Deferred

Published: 2026-09-11T15:17:07.240

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

Link: CVE-2026-87983

Redhat

No data.

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