CVE-2026-6105Public exploitNetwork attack vector

Unauthenticated account creation via exposed installation endpoint

Published Apr 11, 2026 · Updated Apr 11, 2026

Improper authorization in Perfree go-fastdfs-web 1.3.0 through 1.3.7 allows remote attackers to create application users and peer records. The /install/doInstall handler saves submitted Peers and User objects without checking authorization or whether installation has already completed. No authentication or user interaction is required, and successful requests can alter application access and cluster configuration.

CVSS severity7.3
High
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in Perfree go-fastdfs-web 1.3.0 through 1.3.7 allows remote attackers to create application users and peer records. The /install/doInstall handler saves submitted Peers and User objects without checking authorization or whether installation has already completed. No authentication or user interaction is required, and successful requests can alter application access and cluster configuration.

The record

CVE
CVE-2026-6105
Published
Apr 11, 2026
Updated
Apr 11, 2026
Vendor
Perfree
Product
go-fastdfs-web
Classifications
CWE-285, CWE-266, T1136
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.3.0
  2. Affected versionversion=1.3.1
  3. Affected versionversion=1.3.2
  4. Affected versionversion=1.3.3
  5. Affected versionversion=1.3.4
  6. Affected versionversion=1.3.5
  7. Affected versionversion=1.3.6
  8. Affected versionversion=1.3.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Perfree · go-fastdfs-webversion=1.3.0; version=1.3.1; version=1.3.2; version=1.3.3; version=1.3.4; version=1.3.5; version=1.3.6; version=1.3.7

Published CVSS scores

5.5VulDBCVSS: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
7.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
7.5VulDBAV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-285Improper Authorization
CWE-266Incorrect Privilege Assignment
T1136Create Account

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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