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Vulnerability · Published Jun 6, 2026 · Assigned by VulDB

CVE-2026-11437perfree go-fastdfs-web Installation Endpoint checkServer server-side request forgery

High 7.3

In plain English

A high-severity server-side request forgery in go-fastdfs-web from perfree. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities).

Severity (CVSS 3.1)7.3High
Exploit odds (30 days)0.4%top 64.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
perfree go-fastdfs-web 1.3.01.3.11.3.21.3.31.3.41.3.51.3.61.3.7

Weakness: CWE-918 · Vector: 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

References