CVE-2026-69086Public exploitNetwork attack vectorHinoki check available

Cross-scope database disclosure via unvalidated avID

Published Aug 3, 2026 · Updated Aug 3, 2026

Path traversal in SiYuan before 3.7.3 allows remote attackers to read cross-scope database content through attribute-view endpoints. RenderAttributeView and three related readers join a caller-controlled id or avID beneath DataDir/storage/av and load existing .json paths without checking that the cleaned path remains inside that directory. Access requires a RoleReader publish token, or no credentials when publish authentication is disabled; the result is limited to compatible JSON data and a path-existence oracle.

CVSS severity8.3
High
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Path traversal in SiYuan before 3.7.3 allows remote attackers to read cross-scope database content through attribute-view endpoints. RenderAttributeView and three related readers join a caller-controlled id or avID beneath DataDir/storage/av and load existing .json paths without checking that the cleaned path remains inside that directory. Access requires a RoleReader publish token, or no credentials when publish authentication is disabled; the result is limited to compatible JSON data and a path-existence oracle.

The record

CVE
CVE-2026-69086
Published
Aug 3, 2026
Updated
Aug 3, 2026
Vendor
SiYuan Note
Product
SiYuan
Classifications
CWE-22, T1005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 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 <3.7.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

SiYuan Note · SiYuanversion=0 <3.7.3

Published CVSS scores

7.7GitHub Security AdvisoryCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
8.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/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.

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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 exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1005Data from Local System

Public exploit references

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Technologies

Your stack

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Your stack

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