Improper Authorization in perfree go-fastdfs-web up to 1.3.7 Vulnerability
CVE-2026-6105

6.9MEDIUM

Key Information:

Vendor

Perfree

Status
Go-fastdfs-web
Vendor
CVE Published:
11 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-6105?

A security vulnerability has been identified in the perfree go-fastdfs-web application, specifically within the InstallController.java component. This flaw allows for improper authorization, posing a risk that can be exploited remotely. Attackers may leverage this vulnerability to gain unauthorized access to sensitive functionalities within the application. Despite early warnings provided to the vendor, no remedial actions have been communicated, leaving systems potentially exposed to malicious exploitation.

Affected Version(s)

go-fastdfs-web 1.3.0

go-fastdfs-web 1.3.1

go-fastdfs-web 1.3.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-6105 - Proof of Concept

References

https://vuldb.com/vuln/356964
vdb-entry
https://vuldb.com/vuln/356964/cti
signaturepermissions-required
https://vuldb.com/submit/781598
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

yingxiujie (VulDB User)
VulDB CNA Team
.