Description
An arbitrary file write vulnerability in Mistral Vibe, introduced in version 1.3.4, allows an attacker to create or overwrite files outside the active workspace without user approval. Shell redirection destinations are omitted from permission checks, enabling otherwise allowlisted commands to write to arbitrary paths accessible to the Vibe process.
Published: 2026-09-11
Score: 9.3 Critical
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

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

Type Values Removed Values Added
Description An arbitrary file write vulnerability in Mistral Vibe, introduced in version 1.3.4, allows an attacker to create or overwrite files outside the active workspace without user approval. Shell redirection destinations are omitted from permission checks, enabling otherwise allowlisted commands to write to arbitrary paths accessible to the Vibe process.
Weaknesses CWE-22
References
Metrics cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: HiddenLayer

Published:

Updated: 2026-09-11T14:57:01.844Z

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

Link: CVE-2026-87984

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-11T15:17:07.383

Modified: 2026-09-11T15:17:07.383

Link: CVE-2026-87984

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses