CVE-2026-73606: SiYuan before v3.7.4 Information Disclosure via getRefIDs
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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
SiYuanto a version that resolves this vulnerability.Fixed in 3.7.4
Event History
Frequently Asked Questions
What is CVE-2026-73606?
CVE-2026-73606 is an information disclosure vulnerability in SiYuan versions before v3.7.4 affecting the /api/block/getRefIDs endpoint.
What is the severity of CVE-2026-73606?
CVE-2026-73606 has a medium severity score of 5.8.
How do I fix CVE-2026-73606?
To fix CVE-2026-73606, upgrade to SiYuan version 3.7.4 or later.
What are the risks associated with CVE-2026-73606?
CVE-2026-73606 allows unauthenticated users to access references to password-protected documents and block identifiers.
Who is affected by CVE-2026-73606?
Users of SiYuan versions before 3.7.4 are affected by CVE-2026-73606.