CVE-2026-126266

EUVD-2026-125255
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 32.2%
Common Weakness Enumeration
References
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-qf37-w288-frvq
https://www.vulncheck.com/advisories/siyuan-from-3.6.0-before-3.8.9-publish-password-bypass-via-getdoc-regex-keywords