CVE-2026-1471: Caching of authentication context

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-03-11 · updated 2026-06-17
Weakness: CWE-863

Description

Excessive caching of authentication context in Neo4j Enterprise edition versions prior to 2026.01.4 leads to authenticated users inheriting the context of the first user who authenticated after restart. The issue is limited to certain non-default configurations of SSO (UserInfo endpoint). We recommend upgrading to versions 2026.01.4 (or 5.26.22) where the issue is fixed.

Affected products

Neo4j: before 5.26.22; from 2025.01.0 before 2026.01.4 — fixed in 2026.01.4, 5.26.22

How to fix

Upgrade to a fixed version: Neo4j 2026.01.4, 5.26.22. Check the vendor advisory for mitigations.

References

https://neo4j.com/security/CVE-2026-1471

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