CVE-2024-34517
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk47th percentile - higher than 47% of all known CVEs
Summary
The Cypher component in Neo4j 5.0.0 through 5.18 mishandles IMMUTABLE privileges in some situations where an attacker already has admin access.
Risk Assessment
Risk of privilege escalation or data integrity violation in Neo4j environment if attacker already has admin access.
Recommendation
Update Neo4j to a version newer than 5.18 that includes the fix.
Other vulnerabilities in Neo4j
See all- CVE-2026-14587High
A vulnerability in Neo4j's Bolt modern handshake decoder treats an overlong capability bit mask the same as a truncated one. An unauthenticated client can send a selected protocol version with 32 continuation bytes, causing the decoder to reset the reader index and wait for more bytes instead of rejecting the message. The channel remains open, which can be exploited before authentication.
- CVE-2026-1337Medium
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.
Original NVD description (English source)
The Cypher component in Neo4j 5.0.0 through 5.18 mishandles IMMUTABLE privileges in some situations where an attacker already has admin access.