CVE-2026-11437

5.5 mediumEPSS 0.4%

Medium (5.5). EPSS 0.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

5.5 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

CVSS 3.1

7.3 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 35% of CVEs (scores of 2026-10-31)
CWE: CWE-918
Published: 2026-06-06
Modified: 2026-07-23
Record from: the NVD, synced 2026-10-19

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

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