CVE-2026-68587

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.

CVSS Vector

References

• https://github.com/siyuan-note/siyuan/security/advisories/GHSA-69mh-gvh4-8gp7
• https://www.vulncheck.com/advisories/siyuan-before-information-disclosure-via-getheading-transaction
• https://github.com/siyuan-note/siyuan/security/advisories/GHSA-69mh-gvh4-8gp7