What is CVE-2021-34802?

CVE-2021-34802 is a high-severity vulnerability in Neo4j Graph Databse, classified under Improper Privilege Management. CVSS score: 8.8/10. Published 2021-07-30.

How severe is CVE-2021-34802?

High severity. CVSS v3 base score is 8.8 out of 10.

Privilege escalation in Neo4j Graph Databse

CVE-2021-34802

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.

Vulnerability class: Privilege Escalation

Published 2021-07-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.010 (62.5th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 62.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Neo4j Graph Databse — versions 4.2, 4.3

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

References

neo4j.com (Product)
neo4j.com/developer/kb/neo4j-4-2-x-sec-vuln-fix/ (Vendor Advisory)

Frequently asked questions

What is CVE-2021-34802?: CVE-2021-34802 is a high-severity vulnerability in Neo4j Graph Databse, classified under Improper Privilege Management. CVSS score: 8.8/10. Published 2021-07-30.
How severe is CVE-2021-34802?: High severity. CVSS v3 base score is 8.8 out of 10.