CVE-2026-14540Network attack vector

SSRF via unrestricted HTTP redirects

Published Jul 31, 2026 · Updated Jul 31, 2026

SSRF in Google MCP Toolbox for Databases 0.3.0 through 1.4.0 allows remote attackers to reach internal or external endpoints. The generic HTTP source client in internal/sources/http/http.go follows redirects without CheckRedirect or destination-IP validation. Exploitation requires an HTTP source or tool whose attacker-influenced path reaches a redirecting backend; successful requests can read or modify reachable services.

CVSS severity6.1
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Google MCP Toolbox for Databases 0.3.0 through 1.4.0 allows remote attackers to reach internal or external endpoints. The generic HTTP source client in internal/sources/http/http.go follows redirects without CheckRedirect or destination-IP validation. Exploitation requires an HTTP source or tool whose attacker-influenced path reaches a redirecting backend; successful requests can read or modify reachable services.

The record

CVE
CVE-2026-14540
Published
Jul 31, 2026
Updated
Jul 31, 2026
Vendor
Go standard library
Product
MCP Toolbox for Databases
Classifications
CWE-918, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 31, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 31, 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=0.3.0 <=1.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Go standard library · MCP Toolbox for Databasesversion=0.3.0 <=1.4.0

Published CVSS scores

8.0Google Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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