CVE-2026-45147

Medium

Description

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, POST /api/tag/getTag is registered with model.CheckAuth only, omitting both model.CheckAdminRole and model.CheckReadonly, despite the handler performing a configuration write that is normally guarded by both. Any authenticated user — including publish-service RoleReader accounts and RoleEditor accounts on a read-only workspace — can call this endpoint with a sort argument to mutate model.Conf.Tag.Sort and trigger model.Conf.Save(), which atomically rewrites the entire workspace conf.json. This vulnerability is fixed in 3.7.0.

SeverityMedium

CVSS4.3

Exploit probability—

ProductGithub.com/siyuan-note/siyuan/kernel

PublishedMay 14, 2026

First seenMay 14, 2026

Weakness typeCWE-285CWE-285 CWE-862Missing authorization

How to fix

Update

github.com/siyuan-note/siyuan/kernel0.0.0-20260512140701-d7b77d945e0d or later

Affected products

Product	Affected versions	Fixed in
github.com/siyuan-note/siyuan/kernelGo	v < 0.0.0-20260512140701-d7b77d945e0d	0.0.0-20260512140701-d7b77d945e0d

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