CVE-2026-87988

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-87988
StatePUBLISHED
AssignerHiddenLayer
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-11 15:17:07 UTC
Updated2026-09-11 17:35:21 UTC
DescriptionAn 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.

Risk And Classification

Primary CVSS: v4.0 10 CRITICAL from 6f8de1f0-f67e-45a6-b68f-98777fdb759c

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-732 | CWE-732 CWE-732: Incorrect Permission Assignment for Critical Resource

VersionSourceTypeScoreSeverityVector
4.06f8de1f0-f67e-45a6-b68f-98777fdb759cSecondary10CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/C...
4.0CNACVSS10CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Sub Conf.
High
Sub Integrity
High
Sub 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Mistralai Mistral-vibe affected 2.15.0 * semver Not specified

References

ReferenceSourceLinkTags
www.hiddenlayer.com/sai-security-advisory/2026-09-mistral-vibe6 6f8de1f0-f67e-45a6-b68f-98777fdb759c www.hiddenlayer.com
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