Is CVE-2026-85578 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-85578?

CVE-2026-85578 has a CVSS v3 severity of MEDIUM (6.5).

Back

CVE-2026-85578

Description

SiYuan through 3.8.1 contains an authorization bypass vulnerability in the /api/file/getFile endpoint that allows readers to retrieve files from notebooks explicitly configured as Visible:false. Attackers with reader role can access private workspace files including notebook metadata and internal configuration by knowing the hidden notebook identifier and file path.