MEDIUM 5.3 NVD
CVE-2026-85579
SiYuan is affected by an information disclosure vulnerability (confirmed in v3.8.1, fixed in v3.8.2) in the reader-accessible POST /api/transactions/undoState e
SiYuan is affected by an information disclosure vulnerability (confirmed in v3.8.1, fixed in v3.8.2) in the reader-accessible POST /api/transactions/undoState endpoint. The endpoint returns the peekMutatedRootIDs list from the global undo-log stack for a caller-supplied root ID without applying publish-access visibility filtering. An authenticated reader who knows the root ID of a visible document can obtain the internal root IDs of other documents (including private or unpublished ones) modified in the same cross-document transaction, disclosing internal identifiers and cross-document relationships. Document body contents are not directly exposed.
References
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-6gf8-q9ch-w732
- https://www.vulncheck.com/advisories/siyuan-before-3.8.2-information-disclosure-via-undost
This medium severity vulnerability with a CVSS score of 5.3 was published on 2026-09-04 via NVD.
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