🛡️ CVE-2021-34371 — neo4j
Description
Deserialization of Untrusted Data in Neo4j
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.
Affected software
CVE-2021-34371 is recorded against 2 packages.
- neo4j
- org.neo4j:neo4j (fixed in 3.5.0)
Timeline and source
Published on 6 March 2024 and last revised on 3 April 2025. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
Details
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| neo4j | — | — |
| org.neo4j:neo4j | — | 3.5.0 |
References
Similar Threats
- Low CVE-2026-1471
- Low CVE-2026-1497
- Low CVE-2026-1337
- Unknown CGA-4pq7-rqrp-w45p
- Unknown CGA-73h6-h78f-wx27
More CVE 2021 advisories
Browse all of CVE 2021 in the advisory index.
Exploit Protection
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CVE-2021-34371 carries CVSS 9.5 Critical rating. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.
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