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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.

PUBLISHED Reserved 2026-06-05 | Published 2026-06-06 | Updated 2026-06-06 | Assigner VulDB




MEDIUM: 6.9CVSS: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
HIGH: 7.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
HIGH: 7.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
7.5AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Problem types

Server-Side Request Forgery

Product status

1.3.0
affected

1.3.1
affected

1.3.2
affected

1.3.3
affected

1.3.4
affected

1.3.5
affected

1.3.6
affected

1.3.7
affected

Timeline

2026-06-05:VulDB entry created
2026-06-06:Advisory disclosed
2026-06-06:VulDB entry last update

Credits

din4 (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/369017 (VDB-369017 | perfree go-fastdfs-web Installation Endpoint checkServer server-side request forgery) vdb-entry technical-description

vuldb.com/vuln/369017/cti (VDB-369017 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/cve/CVE-2026-11437 (CVE-2026-11437 | CVE Analysis and Report) third-party-advisory

vuldb.com/submit/822726 (Submit #822726 | perfree go-fastdfs-web ≤1.3.7 Server-Side Request Forgery) third-party-advisory

www.notion.so/...n-Endpoint-35aea92a3c41806485ffeeac7e18126a exploit

cve.org (CVE-2026-11437)

nvd.nist.gov (CVE-2026-11437)

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