CVE-2026-72794

High

Description

siyuan versions before v3.7.4 expose the session cookie signing key through the /api/system/getConf endpoint to unauthenticated users in publish mode. Attackers can retrieve the CookieKey value and forge valid session cookies to impersonate users or gain administrative access.

SeverityHigh

CVSS8.6

Exploit probability—

ProductGithub.com/siyuan-note/siyuan/kernel

PublishedAug 12, 2026

First seenAug 12, 2026

Weakness typeCWE-522CWE-522

How to fix

Update

github.com/siyuan-note/siyuan/kernel0.0.0-20260725123945-77421530be4a or later

Vendor advisories

github.com/siyuan-note/siyuan/security/advisories/GHSA-34fj-mwm6-fjfg

Affected products

Product	Affected versions	Fixed in
github.com/siyuan-note/siyuan/kernelGo	v < 0.0.0-20260725123945-77421530be4a	0.0.0-20260725123945-77421530be4a

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