{"cve":"CVE-2026-35402","nvd":{"published":"2026-04-17T21:16:33.170","modified":"2026-06-17T10:40:32.070","status":"Deferred","description":"mcp-neo4j-cypher is an MCP server for executing Cypher queries against Neo4j databases. In versions prior to 0.6.0, the read_only mode enforcement can be bypassed using APOC CALL procedures, potentially allowing unauthorized write operations or server-side request forgery. This issue is fixed in version 0.6.0.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","score":2.3},"cvss_v3":null,"cwes":["CWE-284"],"references":["https://github.com/neo4j-contrib/mcp-neo4j/releases/tag/mcp-neo4j-cypher-v0.6.0","https://github.com/neo4j-contrib/mcp-neo4j/security/advisories/GHSA-x3cv-r3g3-fpg9"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:30:49.762551342+00:00"},"epss":{"cve":"CVE-2026-35402","score":0.00264,"percentile":0.18308,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-x3cv-r3g3-fpg9","url":"https://osv.dev/vulnerability/GHSA-x3cv-r3g3-fpg9","summary":"Neo4j Labs MCP Servers: SSRF and Data Modification via read_only Mode Bypass Through CALL Procedures","modified":"2026-07-13T16:43:36.388075262Z","packages":[{"ecosystem":"PyPI","name":"mcp-neo4j-cypher","purl":"pkg:pypi/mcp-neo4j-cypher","ranges":["<0.6.0"],"fixed":["0.6.0"]}]},{"id":"PYSEC-2026-2626","url":"https://osv.dev/vulnerability/PYSEC-2026-2626","summary":"Neo4j Labs MCP Servers: SSRF and Data Modification via read_only Mode Bypass Through CALL Procedures","modified":"2026-07-13T16:32:13.343500509Z","packages":[{"ecosystem":"PyPI","name":"mcp-neo4j-cypher","purl":"pkg:pypi/mcp-neo4j-cypher","ranges":["<0.6.0"],"fixed":["0.6.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}