CVE-2026-72799Public exploitNetwork attack vector

Private document-tree disclosure via ungated path resolution

Published Aug 12, 2026 · Updated Aug 12, 2026

Missing authorization in SiYuan before 3.7.4 allows remote attackers to disclose private document paths through publish-mode APIs. Five filetree handlers resolve arbitrary IDs and human-readable paths without applying publish-access checks, exposing titles, notebook names, storage paths, and document IDs. Reachability requires publish mode; anonymous access additionally requires Publish.Auth.Enable to be false, while any publish reader token is sufficient.

CVSS severity6.9
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Missing authorization in SiYuan before 3.7.4 allows remote attackers to disclose private document paths through publish-mode APIs. Five filetree handlers resolve arbitrary IDs and human-readable paths without applying publish-access checks, exposing titles, notebook names, storage paths, and document IDs. Reachability requires publish mode; anonymous access additionally requires Publish.Auth.Enable to be false, while any publish reader token is sufficient.

The record

CVE
CVE-2026-72799
Published
Aug 12, 2026
Updated
Aug 12, 2026
Vendor
SiYuan Note
Product
SiYuan
Classifications
CWE-862, T1213
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=0 <3.7.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SiYuan Note · SiYuanversion=0 <3.7.4

Published CVSS scores

5.8VulnCheck CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
5.8GitHub Security AdvisoryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
6.9VulnCheck CNACVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA: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 exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
T1213Data from Information Repositories

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo