EUVD-2026-57454

SiYuan: The session-cookie signing key Conf.CookieKey is returned to anonymous readers by /api/system/getConf...

GHSA-34FJ-MWM6-FJFG SiYuan: The session-cookie signing key (Conf.CookieKey) is returned to anonymous readers by /api/system/getConf

CVE: This vulnerability corresponds to CVE-2026-72794. Summary /api/system/getConf returns Conf.CookieKey, the key used to sign the server's session cookies in its response body. The endpoint is registered with CheckAuth only, so the field reaches the publish RoleReader token and the anonymous...

CVE-2026-72794

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...