Answer in brief
CVE-2026-72803 records a Medium severity (CVSS 5.8) vulnerability in SiYuan before v3.7.4 Information Disclosure via getBlockAttrs. 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.
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.
The current feed maps siyuan-note/siyuan (generic), github.com/siyuan-note/siyuan/kernel (go). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| siyuan-note/siyuangeneric | >=0 <3.7.4 | 3.7.4 |
| github.com/siyuan-note/siyuan/kernelgo | <0.0.0-20260724093256-229fdffd7e4a | 0.0.0-20260724093256-229fdffd7e4a |
Published upstream
Aug 12, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 3, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 12, 2026
SiYuan versions before v3.7.4 fail to enforce publish-access checks in the getBlockAttrs and batchGetBlockAttrs endpoints. Attackers can retrieve block attributes including names, aliases, memos, and custom fields from protected documents by sending POST requests with block IDs.
Quoted source text, attributed separately from HOL analysis.