CVE-2026-19337Public exploit

Internal service response disclosure via unvalidated URL

Published Aug 9, 2026 · Updated Aug 9, 2026

SSRF in Allan Denot mcp-google-search 0.3.0 and 0.3.1 allows local users to read internal HTTP responses via read_webpage. The handler passes the caller-controlled url argument directly to axios.get without blocking private, loopback, link-local, or redirect destinations. The caller must be able to invoke the local MCP tool, and the server must be able to reach the targeted internal service; returned content is exposed through the tool response.

CVSS severity5.3
Medium
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Allan Denot mcp-google-search 0.3.0 and 0.3.1 allows local users to read internal HTTP responses via read_webpage. The handler passes the caller-controlled url argument directly to axios.get without blocking private, loopback, link-local, or redirect destinations. The caller must be able to invoke the local MCP tool, and the server must be able to reach the targeted internal service; returned content is exposed through the tool response.

The record

CVE
CVE-2026-19337
Published
Aug 9, 2026
Updated
Aug 9, 2026
Vendor
Allan Denot
Product
mcp-google-search
Classifications
CWE-918, T1552.005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 9, 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
  2. Affected versionversion=0.3.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Allan Denot · mcp-google-searchversion=0.3.0; version=0.3.1

Published CVSS scores

1.9VulDBCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
5.3VulDBCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
4.3VulDBAV:L/AC:L/Au:S/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1552.005Unsecured Credentials: Cloud Instance Metadata API

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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