CVE-2026-68585

SiYuan before v3.7.3 Metadata Disclosure via getBlockInfo

MEDIUM
5.8
CVSS Score
Published: August 3, 2026 at 01:20 PM UTC
Updated: October 23, 2026 at 09:10 PM UTC
2 products affected across 2 vendorsSiyuanSiyuan

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Severity
MEDIUM5.8
Exploit prediction
EPSS 0.2%
SSVC
PoC

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 3.7.3
Affected range stops below 3.7.3, so it looks safe — our inference, not a vendor statement
0 ≤ v < 3.7.30
Vendor states this is fixed in 3.7.3 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.8MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-862

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