CVE-2026-88898: AppFlowy-Cloud 0.7.2 through 0.9.64 Missing Workspace Authorization on Bulk Publish Endpoint
AppFlowy-Cloud versions 0.7.2 through 0.9.64 fail to authorize callers against the workspace in the bulk publish endpoint path, allowing authenticated users to publish content into other tenants' namespaces. Attackers can write published views with attacker-controlled title, body and metadata into victim workspaces to deface public pages or host phishing content on trusted URLs.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
AppFlowy-Cloudto a version that resolves this vulnerability.Fixed in 0.7.2 through 0.9.64 Missing Workspace Authorization on Bulk Publish Endpoint
Event History
Frequently Asked Questions
Which deployments are affected?
AppFlowy-Cloud versions 0.7.2 through 0.9.64 are affected.
What access does an attacker need?
An attacker needs an authenticated account with low privileges. Exploitation is network-accessible, requires low attack complexity, and does not require user interaction.
What is the expected security impact?
The issue affects integrity: an attacker can publish attacker-controlled views into another tenant's workspace, including titles, bodies, and metadata. This can be used to deface public pages or place phishing content on trusted URLs; confidentiality and availability impacts are not indicated.