CVE-2026-7702Network attack vector

Unauthenticated document disclosure via unchecked preview identifier

Published May 3, 2026 · Updated May 3, 2026

Improper authorization in AFFiNE 0.26.0 through 0.26.3 allows remote attackers to read restricted document previews. The allowDocPreview function on /workspace/:workspaceId/:docId uses an attacker-supplied document identifier without enforcing that the selected document is authorized for public Markdown preview. No authentication or user interaction is required, and the reported consequence is limited to disclosure of document content.

CVSS severity5.3
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in AFFiNE 0.26.0 through 0.26.3 allows remote attackers to read restricted document previews. The allowDocPreview function on /workspace/:workspaceId/:docId uses an attacker-supplied document identifier without enforcing that the selected document is authorized for public Markdown preview. No authentication or user interaction is required, and the reported consequence is limited to disclosure of document content.

The record

CVE
CVE-2026-7702
Published
May 3, 2026
Updated
May 3, 2026
Vendor
TOEVERYTHING
Product
AFFiNE
Classifications
CWE-639, CWE-285, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 3, 2026CVE publishedPublication date reported by the CVE source.
  2. May 3, 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=0.26.0
  2. Affected versionversion=0.26.1
  3. Affected versionversion=0.26.2
  4. Affected versionversion=0.26.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TOEVERYTHING · AFFiNEversion=0.26.0; version=0.26.1; version=0.26.2; version=0.26.3

Published CVSS scores

5.5VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
5.0VulDB CNAAV:N/AC:L/Au:N/C:P/I:N/A:N
5.3VulDB CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
CWE-285Improper Authorization
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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