CVE-2026-11437
perfree go-fastdfs-web Installation Endpoint checkServer server-side request forgery
- State
- Published
- Severity
- 6.9 Medium
- Published
- Jun 6, 2026
- Updated
- Jun 8, 2026
- Reserved
- Jun 5, 2026
Description
A flaw has been found in perfree go-fastdfs-web up to 1.3.7. Affected is the function checkServer of the file /install/checkServer of the component Installation Endpoint. Executing a manipulation can lead to server-side request forgery. The attack can be executed remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 7.3 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 7.3 High | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 7.5 High | AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
- CWE-918 Server-Side Request Forgery
Affected Products
| Product | Versions |
|---|---|
go-fastdfs-webperfree |
|
References
- VDB-369017 | perfree go-fastdfs-web Installation Endpoint checkServer server-side request forgeryvdb-entrytechnical-description
- VDB-369017 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-11437 | CVE Analysis and Reportthird-party-advisory
- Submit #822726 | perfree go-fastdfs-web ≤1.3.7 Server-Side Request Forgerythird-party-advisory
- https://www.notion.so/Server-Side-Request-Forgery-SSRF-in-go-fastdfs-web-Installation-Endpoint-35aea92a3c41806485ffeeac7e18126aexploit
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