MEDIUMVulnerability
CVE-2026-87810
Siyuan before v3.8.2 contains an information disclosure vulnerability in the POST /api/search/fullTextSearchBlock endpoint that filters private blocks from results but returns unfiltered match counts. Unauthenticated publish-mode readers can submit arbitrary search terms to learn whether matching content exists in hidden or unpublished documents and determine the number of matching blocks and pages.
Properties
- severity
- MEDIUM
- score
- 5.3
- cve_id
- CVE-2026-87810
- signal_observed_at
- 2026-09-17T21:32:24+00:00
- vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- published_at
- 2026-09-09T12:17:15.797
- last_modified
- 2026-09-14T13:19:00.347
Related Entities (2)
HAS_WEAKNESS (1)
→[Weakness]Exposure of Sensitive Information to an Unauthorized Actor
DESCRIBED_BY (1)
→[Source]NVD
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