Duplicate Advisory: 17 block metadata/content endpoints in kernel/api/block.go have zero publish-access filtering, reachable by anonymous publish-mode readers
SiYuan before version 3.7.4 has a vulnerability in 17 block metadata and content endpoints within kernel/api/block.go. These endpoints lack proper authorization checks and publish-access filtering, allowing anonymous users to access private block content and metadata without authentication. This issue affects handlers such as getRefText, checkBlockExist, and getBlockBreadcrumb.
AI Analysis
Technical Summary
The vulnerability in SiYuan (prior to v3.7.4) involves missing authorization checks in 17 endpoints related to block metadata and content in kernel/api/block.go. These endpoints rely only on basic authentication (model.CheckAuth) and do not enforce publish-access filtering. As a result, anonymous users operating in publish-mode can disclose private block content-derived text, structural metadata, and existence information for arbitrary block IDs across the workspace. This issue is tracked under CWE-862 (Missing Authorization).
Potential Impact
An attacker can anonymously read private block content and metadata without any privileges, potentially exposing sensitive information. The vulnerability has a CVSS v3.1 score of 7.5 (high severity), indicating a network attack vector with low complexity and no privileges or user interaction required. The confidentiality impact is high, while integrity and availability are not affected.
Mitigation Recommendations
No explicit patch or remediation details are provided in the advisory. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the affected endpoints or deploy additional access controls to prevent anonymous access to publish-mode readers.
Duplicate Advisory: 17 block metadata/content endpoints in kernel/api/block.go have zero publish-access filtering, reachable by anonymous publish-mode readers
Description
SiYuan before version 3.7.4 has a vulnerability in 17 block metadata and content endpoints within kernel/api/block.go. These endpoints lack proper authorization checks and publish-access filtering, allowing anonymous users to access private block content and metadata without authentication. This issue affects handlers such as getRefText, checkBlockExist, and getBlockBreadcrumb.
CVSS v3.1
Score 7.5high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in SiYuan (prior to v3.7.4) involves missing authorization checks in 17 endpoints related to block metadata and content in kernel/api/block.go. These endpoints rely only on basic authentication (model.CheckAuth) and do not enforce publish-access filtering. As a result, anonymous users operating in publish-mode can disclose private block content-derived text, structural metadata, and existence information for arbitrary block IDs across the workspace. This issue is tracked under CWE-862 (Missing Authorization).
Potential Impact
An attacker can anonymously read private block content and metadata without any privileges, potentially exposing sensitive information. The vulnerability has a CVSS v3.1 score of 7.5 (high severity), indicating a network attack vector with low complexity and no privileges or user interaction required. The confidentiality impact is high, while integrity and availability are not affected.
Mitigation Recommendations
No explicit patch or remediation details are provided in the advisory. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the affected endpoints or deploy additional access controls to prevent anonymous access to publish-mode readers.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-69jp-f2p8-9vrg
- Osv Schema Version
- 1.4.0
- Ecosystems
- ["Go"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
Threat ID: 6ac139aea43b0b3b89d69ae6
Added to database: 10/03/2026, 17:21:50 UTC
Last enriched: 10/03/2026, 17:39:33 UTC
Last updated: 10/04/2026, 02:49:08 UTC
Views: 8
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