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OpenAdvisories
High · 7.5 CVE-2026-126266 EUVD-2026-125255GHSA-pfgc-h44r-q35q

SiYuan from 3.6.0 before 3.8.9 Publish-Password Bypass via getDoc Regex Keywords

Published Nov 13, 2026 · Updated Nov 13, 2026 · Assigned by VulnCheck

Description

SiYuan from 3.6.0 before 3.8.9 contains an information disclosure vulnerability that allows unauthenticated publish visitors to bypass per-document passwords via regex search in getDoc. Attackers can send POST requests to /api/filetree/getDoc with queryMethod 3 and a broad regex to read protected body text returned in the unfiltered keywords field.

Affected products

VendorProductAffectedFixed
siyuan-note siyuan 3.6.0 – < 3.8.9 3.8.9

References