CVE-2026-87815
HIGH
NVD
CVSS Score
8.7
Severity
HIGH
Published
Sep 09, 2026
Vendor
unknown
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.