9.2

CVE-2026-72798: siyuan-note siyuan Missing Authorization

CVSS: 9.2v4.0CriticalDeferred
AliasesGHSA-mfrj-v65r-979cGO-2026-6415
Published 12-08-2026Last modified 14-08-2026
Open JSON

Vulnerability summary

CVE-2026-72798 is a critical (CVSS 9.2) Missing Authorization vulnerability in siyuan-note siyuan. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 36.2% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.2/10
010
Critical · v4.0 (CVE.org)
EPSS score
0.43%
0%100%
Low · +0.18 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3 · Related 3
OPENSUSE-SU-2026:21897-1SUSE-SU-2026:23855-1SUSE-SU-2026:23863-1

Timeline

  1. 12-08-2026
    PublishedVulnerability first disclosed.
  2. 14-08-2026
    Last modifiedVulnerability information updated.

Description

SiYuan versions before v3.7.4 fail to properly filter related-database content in renderAttributeView, allowing anonymous readers to access Relation and Rollup cell contents from hidden or password-protected databases. Attackers can request published databases that relate to restricted databases to retrieve sensitive content, or bypass row filtering entirely when the first column is a non-block type.

CVSS metrics

5 scores · 3 sources · 2 versions

EPSS trend

Probability

0.43%

Chance of exploitation in the next 30 days

Percentile

36%

Versus all other CVEs

30-day change

+0.18 pp

From 0.26% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.43%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Github.com/siyuan-note/siyuan1 product
  • kernel< 0.0.0-20260724121519-426991d155c0
Siyuan-note1 product

2 vendors · 2 products

References

5 links