Insufficient escaping of unicode characters in query log in Neo4j Enterprise and Community editions prior to 2026.01 can lead to XSS if the user opens the logs in a tool that treats them as HTML. There is no security impact on Neo4j products, but this advisory is released as a precaution to treat the logs as plain text if using versions prior to 2026.01.
Proof of concept exploit: https://github.com/JoakimBulow/CVE-2026-1337
CVSS Score
5.4
EPSS Score
0.0
Published
2026-02-06
The Cypher component in Neo4j 5.0.0 through 5.18 mishandles IMMUTABLE privileges in some situations where an attacker already has admin access.
CVSS Score
6.5
EPSS Score
0.002
Published
2024-05-07
Neo4j through 3.4.18 (with the shell server enabled) exposes an RMI service that arbitrarily deserializes Java objects, e.g., through setSessionVariable. An attacker can abuse this for remote code execution because there are dependencies with exploitable gadget chains.
CVSS Score
9.8
EPSS Score
0.649
Published
2021-08-05
Due to incorrect access control in Neo4j Enterprise Database Server 3.4.x before 3.4.9, the setting of LDAP for authentication with STARTTLS, and System Account for authorization, allows an attacker to log into the server by sending any valid username with an arbitrary password.
CVSS Score
9.8
EPSS Score
0.008
Published
2018-10-16
Multiple cross-site request forgery (CSRF) vulnerabilities in Neo4J 1.9.2 allow remote attackers to hijack the authentication of administrators for requests that execute arbitrary code, as demonstrated by a request to (1) db/data/ext/GremlinPlugin/graphdb/execute_script or (2) db/manage/server/console/.
CVSS Score
6.8
EPSS Score
0.003
Published
2014-04-29