CVE-2026-85619 PUBLISHED

AppFlowy-Cloud 0.9.64 Cross-Workspace Collab Access via HTTP API

Assigner: VulnCheck
Reserved: 04.09.2026 Published: 04.09.2026 Updated: 04.09.2026

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.

CVSS Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 7.7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	High	Integrity	High	Integrity	None
Attack Requirements	Present	Availability	High	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 7.5

Attack Vector	Network	Scope	Unchanged
Attack Complexity	High	Confidentiality Impact	High
Privileges Required	Low	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	AppFlowy-IO
Product	AppFlowy-Cloud
Versions	Default: unaffected affected from 0 to 0.9.64 (incl.)

CVE-2026-85619 PUBLISHED

AppFlowy-Cloud 0.9.64 Cross-Workspace Collab Access via HTTP API

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Product Status

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Problem Types