The vulnerability of the Neo4j Cypher MCP server, related to the data source verification error, allows attackers to bypass existing security restrictions and execute arbitrary code.

The vulnerability of the Neo4j Cypher MCP server is related to a data source verification error. Exploiting this vulnerability allows an attacker to bypass existing security restrictions and execute arbitrary code...

PT-2026-59278

Summary The read only mode in mcp-neo4j-cypher versions prior to 0.6.0 can be bypassed using CALL procedures. Details Impact The enforcing of read only mode in vulnerable versions could be bypassed by certain APOC procedures. Patches v0.6.0 release hardened the checks around the mode. The only wa...

Neo4j Cypher MCP server is vulnerable to DNS rebinding

ImpactDNS rebinding vulnerability in Neo4j Cypher MCP server allows malicious websites to bypass Same-Origin Policy protections and execute unauthorised tool invocations against locally running Neo4j MCP instances. The attack relies on the user being enticed to visit a malicious website and spend...

PYSEC-2026-1620 Neo4j Cypher MCP server is vulnerable to DNS rebinding

Impact DNS rebinding vulnerability in Neo4j Cypher MCP server allows malicious websites to bypass Same-Origin Policy protections and execute unauthorised tool invocations against locally running Neo4j MCP instances. The attack relies on the user being enticed to visit a malicious website and spen...

Authorization Bypass

mcp-neo4j-cypher is vulnerable to Authorization Bypass. The vulnerability is due to the readonly mode enforcement being bypassable using APOC CALL procedures, where unauthorized write operations or server-side request forgery can occur and attackers can exploit this to gain unauthorized access...

EUVD-2026-23518

Neo4j Labs MCP Servers: SSRF and Data Modification via readonly Mode Bypass Through CALL Procedures...

CVE-2026-35402

mcp-neo4j-cypher is an MCP server for executing Cypher queries against Neo4j databases. In versions prior to 0.6.0, the readonly mode enforcement can be bypassed using APOC CALL procedures, potentially allowing unauthorized write operations or server-side request forgery. This issue is fixed in...

CVE-2026-35402 mcp-neo4j-cypher: SSRF and Data Modification via read_only Mode Bypass Through CALL Procedures

mcp-neo4j-cypher is an MCP server for executing Cypher queries against Neo4j databases. In versions prior to 0.6.0, the readonly mode enforcement can be bypassed using APOC CALL procedures, potentially allowing unauthorized write operations or server-side request forgery. This issue is fixed in...

CVE-2026-35402 mcp-neo4j-cypher: SSRF and Data Modification via read_only Mode Bypass Through CALL Procedures

mcp-neo4j-cypher is an MCP server for executing Cypher queries against Neo4j databases. In versions prior to 0.6.0, the readonly mode enforcement can be bypassed using APOC CALL procedures, potentially allowing unauthorized write operations or server-side request forgery. This issue is fixed in...

CVE-2026-35402

The CVE concerns mcp-neo4j-cypher (MCP server) where, in versions before 0.6.0, enforcement of read_only mode can be bypassed via APOC CALL procedures, potentially allowing unauthorized write operations or server-side request forgery. This is mitigated by upgrading to version 0.6.0, which fixes t...

DNS Rebinding

Neo4j Cypher MCP is vulnerable to DNS Rebinding. The vulnerability is due to the MCP server trusting requests from rebinding hostnames, and attackers can lure users to a malicious website that rebinding succeeds on to bypass Same-Origin Policy and invoke tools against local Neo4j instances...

EUVD-2024-1703

Malicious code in bioql PyPI...

EUVD-2025-28908

Malicious code in bioql PyPI...

CVE-2025-10193

DNS rebinding vulnerability in Neo4j Cypher MCP server allows malicious websites to bypass Same-Origin Policy protections and execute unauthorised tool invocations against locally running Neo4j MCP instances. The attack relies on the user being enticed to visit a malicious website and spend...

Origin Validation Error

Overview mcp-neo4j-cypher is an A simple Neo4j MCP server Affected versions of this package are vulnerable to Origin Validation Error via the lack of proper origin validation in the server's request handling. An attacker can execute unauthorized tool invocations against locally running instances ...

GHSA-VCQX-V2MG-7CHX Neo4j Cypher MCP server is vulnerable to DNS rebinding

Impact DNS rebinding vulnerability in Neo4j Cypher MCP server allows malicious websites to bypass Same-Origin Policy protections and execute unauthorised tool invocations against locally running Neo4j MCP instances. The attack relies on the user being enticed to visit a malicious website and spen...

Neo4j Cypher MCP server is vulnerable to DNS rebinding

Impact DNS rebinding vulnerability in Neo4j Cypher MCP server allows malicious websites to bypass Same-Origin Policy protections and execute unauthorised tool invocations against locally running Neo4j MCP instances. The attack relies on the user being enticed to visit a malicious website and spen...

CVE-2025-10193

CVE-2025-10193 : DNS rebinding vulnerability in the Neo4j Cypher MCP server allows a malicious website to bypass Same-Origin Policy and trigger unauthorised local tool invocations. The attack relies on a user visiting a crafted site for enough time to succeed. Public details indicate impact on th...

CVE-2025-10193 Neo4j Cypher MCP server is vulnerable to DNS rebinding attacks

DNS rebinding vulnerability in Neo4j Cypher MCP server allows malicious websites to bypass Same-Origin Policy protections and execute unauthorised tool invocations against locally running Neo4j MCP instances. The attack relies on the user being enticed to visit a malicious website and spend...

CVE-2025-10193 Neo4j Cypher MCP server is vulnerable to DNS rebinding attacks

DNS rebinding vulnerability in Neo4j Cypher MCP server allows malicious websites to bypass Same-Origin Policy protections and execute unauthorised tool invocations against locally running Neo4j MCP instances. The attack relies on the user being enticed to visit a malicious website and spend...