Neo4j APOC (Awesome Procedures on Cypher) before 4.3.0.7 and 4.x before 4.4.0.8 allows Directory Traversal to sibling directories via apoc.log.stream.

A directory traversal vulnerability in the apoc plugins in Neo4J Graph database before 4.4.0.1 allows attackers to read local files, and sometimes create local files. This is fixed in 3.5.17, 4.2.10, 4.3.0.4, and 4.4.0.1.

A failure in resetting the security context in some transaction actions in Neo4j Graph Database 4.2 and 4.3 could allow authenticated users to execute commands with elevated privileges.

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.

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.

neo4j-contrib neo4j-apoc-procedures version before commit 45bc09c contains a XML External Entity (XXE) vulnerability in XML Parser that can result in Disclosure of confidential data, denial of service, SSRF, port scanning. This vulnerability appears to have been fixed in after commit 45bc09c.