SiYuan before v3.7.4 Authentication Bypass via Attribute View (CVE-2026-72806) | HOL Guard CVE

Medium · CVSS 5.8CVE-2026-72806GHSA-6MCF-G667-W3QV

SiYuan before v3.7.4 Authentication Bypass via Attribute View

Answer in brief

CVE-2026-72806 records a Medium severity (CVSS 5.8) vulnerability in SiYuan before v3.7.4 Authentication Bypass via Attribute View. The current sources do not mark it as known exploited. The current feed maps siyuan-note/siyuan (generic), github.com/siyuan-note/siyuan/kernel (go). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 12, 2026Updated Sep 3, 2026Source checked Sep 29, 2026First seen by HOL Aug 12, 2026Material review Sep 3, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 5.8
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 5.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps siyuan-note/siyuan (generic), github.com/siyuan-note/siyuan/kernel (go). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
siyuan-note/siyuangeneric	>=0 <3.7.4	3.7.4
github.com/siyuan-note/siyuan/kernelgo	<0.0.0-20260723040913-768427f20f13	0.0.0-20260723040913-768427f20f13

Recommended response

Check inventory. Check lockfiles and deployed manifests for siyuan-note/siyuan, github.com/siyuan-note/siyuan/kernel.
Review the reported fix. Update siyuan-note/siyuan to 3.7.4; github.com/siyuan-note/siyuan/kernel to 0.0.0-20260723040913-768427f20f13 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 12, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 3, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 12, 2026

Sources and claim methodology

Upstream source description

SiYuan versions before v3.7.4 contain an authentication bypass vulnerability in the FilterViewByPublishAccess filter that fails to check publish password protection when rendering attribute views and database rows. Unauthenticated readers can access password-protected document rows including titles, block IDs, and column values by calling renderAttributeView without supplying the required password.

Quoted source text, attributed separately from HOL analysis.