CVE-2026-87815

HighCVSS 8.7/10Last modified Sep 14, 2026

Description

SiYuan versions before v3.8.2 contain a path traversal vulnerability in the /api/riff/removeRiffDeck endpoint that fails to validate the deckID parameter. An authenticated administrator can supply path traversal sequences to delete arbitrary .deck and .cards files outside the workspace directory.

Metrics

CVSS 3.1 8.7/10CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H

Weakness enumeration

CWE-73

Affected software

No affected versions have been published.

Timeline

Published: Sep 9, 2026
Last modified: Sep 14, 2026
NVD status: Deferred

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