Auth misconfiguration when multiple providers enabled

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-1524
StatePUBLISHED
AssignerNeo4j
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-11 17:16:54 UTC
Updated2026-03-12 21:08:22 UTC
DescriptionAn edgecase in SSO implementation in Neo4j Enterprise edition versions prior to version 2026.02 can lead to unauthorised access under the following conditions: If a neo4j admin configures two or more OIDC providers AND configures one or more of them to be an authorization provider AND configures one or more of them to be authentication-only, then those that are authentication-only will also provide authorization. This edgecase becomes a security problem only if the authentication-only provider contains groups which have higher privileges than provided by the intended (configured) authorization provider. When using multiple plugins for authentication and authorisation, prior to the fix the issue could lead to a plugin configured to provide only authentication or authorisation capabilities erroneously providing both capabilities.  We recommend upgrading to versions 2026.02 (or 5.26.22) where the issue is fixed.

Risk And Classification

Primary CVSS: v4.0 2.1 LOW from 3b236295-4ccd-4a1f-a1c1-a72eecc8d7b6

CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:D/RE:M/U:Green

EPSS: 0.000880000 probability, percentile 0.251240000 (date 2026-05-28)

Problem Types: CWE-287 | CWE-863 | CWE-863 CWE-863 Incorrect Authorization | CWE-287 CWE-287 Improper Authentication

VersionSourceTypeScoreSeverityVector
4.03b236295-4ccd-4a1f-a1c1-a72eecc8d7b6Secondary2.1LOWCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/C...
4.0CNACVSS2.1LOWCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/AU:N/...

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
High
User Interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:D/RE:M/U:Green

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Neo4j Enterprise Edition affected 4.4.0 5.26.22 semver Not specified
CNA Neo4j Enterprise Edition affected 2025.01 2026.02 date Not specified

References

ReferenceSourceLinkTags
neo4j.com/security/CVE-2026-1524 3b236295-4ccd-4a1f-a1c1-a72eecc8d7b6 neo4j.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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