CVE-2026-85578
SiYuan through 3.8.1 Authorization Bypass via getFile
- State
- Published
- Severity
- 7.1 High
- Published
- Sep 4, 2026
- Updated
- Oct 8, 2026
- Reserved
- Sep 4, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.1 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-862 Missing Authorization
Affected Products
| Product | Versions |
|---|---|
siyuansiyuan-note |
|
References
- GitHub Security Advisory (GHSA-8ggq-wq3f-vxrw)vendor-advisory
- VulnCheck Advisory: SiYuan through 3.8.1 Authorization Bypass via getFilethird-party-advisory
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