CVE-2025-10193Network attack vector

Unauthorized tool invocation via unchecked request origins

Published Sep 11, 2025 · Updated Feb 26, 2026

DNS rebinding in Neo4j Cypher MCP server 0.2.2 through 0.3.1 allows remote attackers to invoke tools through a malicious website. HTTP and SSE transports accept browser requests without validating Host or Origin headers, allowing a rebound domain to reach the loopback MCP endpoint. A user must keep an attacker-controlled page open long enough for DNS rebinding; successful requests can read or modify the connected Neo4j database through exposed Cypher tools.

CVSS severity7.4
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

DNS rebinding in Neo4j Cypher MCP server 0.2.2 through 0.3.1 allows remote attackers to invoke tools through a malicious website. HTTP and SSE transports accept browser requests without validating Host or Origin headers, allowing a rebound domain to reach the loopback MCP endpoint. A user must keep an attacker-controlled page open long enough for DNS rebinding; successful requests can read or modify the connected Neo4j database through exposed Cypher tools.

The record

CVE
CVE-2025-10193
Published
Sep 11, 2025
Updated
Feb 26, 2026
Vendor
Neo4j
Product
Neo4j Cypher MCP server
Classifications
CWE-346, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 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=0.2.2 <=0.3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Neo4j · Neo4j Cypher MCP serverversion=0.2.2 <=0.3.1

Published CVSS scores

7.4Neo4jCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-346Origin Validation Error
T1189Drive-by Compromise

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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