CVE-2026-73606

Description

SiYuan versions before v3.7.4 contain an information disclosure vulnerability in the /api/block/getRefIDs endpoint that fails to check password-protected document tiers. Unauthenticated readers can discover that password-protected documents reference specific blocks and obtain block identifiers without entering the document password.

CVSS Vector

References

• https://github.com/siyuan-note/siyuan/security/advisories/GHSA-vg99-7gj7-2fr5
• https://www.vulncheck.com/advisories/siyuan-before-information-disclosure-via-getrefids
• https://github.com/siyuan-note/siyuan/security/advisories/GHSA-vg99-7gj7-2fr5