CVE-2026-11437

perfree go-fastdfs-web Installation Endpoint checkServer server-side request forgery

CVSS 6.9 MEDIUMEPSS 0.4%CWE-918

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.

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

Affected products

perfree · go-fastdfs-web

public PoCs found — 1

cve_referencewww.notion.so/Server-Side-Request-Forgery-SSRF-in-go-fastdfs-web-Installation-Endpoint-35aea92a3c41806485ffeeac7e18126aunverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References

https://vuldb.com/cve/CVE-2026-11437 https://vuldb.com/submit/822726 https://vuldb.com/vuln/369017 https://vuldb.com/vuln/369017/cti https://www.notion.so/Server-Side-Request-Forgery-SSRF-in-go-fastdfs-web-Installation-Endpoint-35aea92a3c41806485ffeeac7e18126a