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CVE-2026-85619— AppFlowy-Cloud 0.9.64 Cross-Workspace Collab Access via HTTP API

Quick assessment

Affected
AppFlowy-IO AppFlowy-Cloud
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

AppFlowy-Cloud 0.9.64 版本在授权检查中未能验证所请求的协同对象是否属于当前工作区，导致攻击者能够跨工作区访问文档和数据库记录。攻击者可以通过提供受害者的对象 ID 并搭配自己的工作区 ID，从而绕过访问控制，实现对跨工作区数据的读取、修改或删除。

CVSS 7.5 · High

Affected Version Matrix 1

VendorProduct Version RangeStatus
AppFlowy-IO AppFlowy-Cloud ≤ 0.9.64 affected
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I. Basic Information for CVE-2026-85619

Vulnerability Information
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Vulnerability Title
AppFlowy-Cloud 0.9.64 Cross-Workspace Collab Access via HTTP API
Source: CVE Program / CVE List V5
Vulnerability Description
AppFlowy-Cloud 0.9.64 fails to verify that requested collab objects belong to the workspace in authorization checks, allowing attackers to access documents and database rows across workspaces. Attackers can supply a victim's object ID with their own workspace ID to bypass access controls and read, modify, or delete cross-workspace data.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
AppFlowy-IO AppFlowy-Cloud 0 ~ 0.9.64 -

II. Public POCs for CVE-2026-85619

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III. Intelligence Information for CVE-2026-85619

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Patches & Fixes for CVE-2026-85619 (1)

Vendor Advisories for CVE-2026-85619 (1)

Vendor Pages for CVE-2026-85619 (1)

Other References for CVE-2026-85619 (1)

IV. Related Vulnerabilities

Same product: AppFlowy-Cloud
Same vendor: AppFlowy-IO
Same weakness: CWE-863

V. Comments for CVE-2026-85619

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