CVE-2026-68587
SiYuan before v3.7.3 Information Disclosure via getHeading*Transaction
- State
- Published
- Severity
- 9.2 Critical
- Published
- Aug 3, 2026
- Updated
- Aug 14, 2026
- Reserved
- Jul 31, 2026
Description
SiYuan versions before v3.7.3 contain an information disclosure vulnerability in the getHeadingDeleteTransaction, getHeadingLevelTransaction, and getHeadingInsertTransaction endpoints that return rendered block DOM without publish-access checks. Anonymous readers or publish RoleReader tokens can supply a heading block ID to read full rendered content of publish-disabled documents that should be restricted.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.2 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N | VulnCheck |
| 3.1 | 8.6 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-862 Missing Authorization
Affected Products
| Product | Versions |
|---|---|
siyuansiyuan-note |
|
References
- GitHub Security Advisory (GHSA-69mh-gvh4-8gp7)vendor-advisory
- VulnCheck Advisory: SiYuan before v3.7.3 Information Disclosure via getHeading*Transactionthird-party-advisory
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