Vulnerability · Published Aug 3, 2026 · Assigned by VulnCheck

CVE-2026-68585SiYuan before v3.7.3 Metadata Disclosure via getBlockInfo

Medium 5.8

In plain English

A medium-severity missing authorization in siyuan from siyuan-note. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.8Medium

Exploit odds (30 days)0.2%top 84.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

SiYuan versions before v3.7.3 contain a metadata disclosure vulnerability in the /api/block/getBlockInfo endpoint that returns document root metadata including title for publish-forbidden documents without publish-access checks. Anonymous readers or publish RoleReader tokens can supply a block ID to retrieve the title, notebook, path, root ID, and icon of documents administrators marked as excluded from publishing.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Go	github.com/siyuan-note/siyuan/kernel	0.0.0-20260721014951-ffde3b21eca4	GHSA-pm3w-vxp9-ccwc
Go	github.com/siyuan-note/siyuan/kernel	0.0.0-20260721014951-ffde3b21eca4	GO-2026-6384

Affected products (as reported)

Vendor	Product	Versions
siyuan-note	siyuan	0 – before 3.7.3

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

References

GitHub Security Advisory (GHSA-pm3w-vxp9-ccwc) vendor-advisory
VulnCheck Advisory: SiYuan before v3.7.3 Metadata Disclosure via getBlockInfo third-party-advisory