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CVE-2026-87984

mistral-vibe · Vulnerability

CVSS 4.0 9.3 CRITICALCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-87984

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-87984

Published

mistral-vibe

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "mistralai",
                    "product": "mistral-vibe",
                    "repo": "https://github.com/mistralai/mistral-vibe",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "1.3.4",
                            "lessThanOrEqual": "*",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

Original source record · Cite this exact observation · Complete original publisher JSON