CVE-2026-1471
Description
A flaw was found in Neo4j. Authenticated users can inherit the authentication context of the first user who authenticated after a system restart. This occurs due to excessive caching of authentication context in certain non-default configurations of the Single Sign-On (SSO) UserInfo endpoint. This could lead to unauthorized access to resources or actions intended for the initial user.
Statement
This LOW impact vulnerability affects Neo4j Enterprise edition versions prior to 2026.01.4. Authenticated users may inherit another user's authentication context due to excessive caching in SSO. Exploitation requires high complexity—non-default SSO configuration and timing relative to restart. Impact is limited since the attacker cannot control whose context they inherit. Red Hat products are affected if using vulnerable Neo4j versions with SSO UserInfo endpoint enabled.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 4.2 | N/A | N/A |
| Attack Vector | Network | N/A | N/A |
| Attack Complexity | High | N/A | N/A |
| Privileges Required | Low | N/A | N/A |
| User Interaction | None | N/A | N/A |
| Scope | Unchanged | N/A | N/A |
| Confidentiality | Low | N/A | N/A |
| Integrity Impact | Low | N/A | N/A |
| Availability Impact | None | N/A | N/A |
Vector
Red Hat: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Understanding the Weakness (CWE)
Confidentiality
Technical Impact: Read Application Data
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