VU#762226: Plane contains multi-tenant authorization bypass vulnerability

Summary

Overview The project management tool Plane, versions 1.3.0 and earlier, contains a multi-tenant authorization bypass vulnerability in its asset-management API that allows unauthorized users to access, delete, or duplicate assets that belong to other workspaces. Description Plane is an open-source project management platform that provides multi-tenant workspace isolation for users to track issues, monitor progress, and manage workflows. The platform's API supports uploading, retrieving, deleting, and duplicating files associated with issues and tasks within a workspace. CVE-2026-15342 Plane's asset-management API endpoints accept workspace slugs and asset identifiers as path parameters, but do not verify that the requesting user is authorized to access the specified workspace. As a result, an authenticated user in one workspace can supply... Related CVEs: CVE-2026-15342.

Why it matters

CERT/CC notes often cover coordinated disclosures, multi-vendor exposure, infrastructure risk, or cases where remediation guidance is still developing.

Operator check

Review the CERT/CC Vulnerability Note and compare the affected vendor and product list against your inventory. Apply vendor fixes or compensating controls for Plane where available.

Sources