CVE-2026-85619Network attack vectorHinoki check available

Cross-workspace data access via object-blind authorization

Published Sep 4, 2026 · Updated Sep 4, 2026

Incorrect authorization in AppFlowy Cloud 0.9.64 allows remote authenticated users to read, modify, or delete cross-workspace data. Collab access checks validate membership in the workspace ID supplied by the requester but do not verify that the requested object ID belongs to that workspace. Exploitation requires a valid account and a victim object ID; the consequence is unauthorized access to documents and database rows.

CVSS severity7.7
High
EPSS probability0.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Incorrect authorization in AppFlowy Cloud 0.9.64 allows remote authenticated users to read, modify, or delete cross-workspace data. Collab access checks validate membership in the workspace ID supplied by the requester but do not verify that the requested object ID belongs to that workspace. Exploitation requires a valid account and a victim object ID; the consequence is unauthorized access to documents and database rows.

The record

CVE
CVE-2026-85619
Published
Sep 4, 2026
Updated
Sep 4, 2026
Vendor
AppFlowy
Product
AppFlowy Cloud
Classifications
CWE-863, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 4, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=0.9.64

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

AppFlowy · AppFlowy Cloudversion=0 <=0.9.64

Published CVSS scores

7.7VulnCheckCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.5VulnCheckCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
T1213Data from Information Repositories

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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