MEDIUM 6.9 NVD
CVE-2026-105205
SiYuan before 3.8.5 contains an information disclosure vulnerability that allows publish-mode readers to learn backlink block IDs and reference counts from pass
SiYuan before 3.8.5 contains an information disclosure vulnerability that allows publish-mode readers to learn backlink block IDs and reference counts from password-protected and publish-disabled documents by querying a published document. Attackers can send POST requests to /api/block/getDocInfo or getDocsInfo for a published document ID to obtain refIDs and refCount of hidden referencing blocks, bypassing the publish confidentiality boundary.
References
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-v758-8w88-pfr2
- https://www.vulncheck.com/advisories/siyuan-before-3.8.5-information-disclosure-via-api-bl
This medium severity vulnerability with a CVSS score of 6.9 was published on 2026-10-04 via NVD.
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