CVE-2026-5423
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What it is
Reported@neo4j/graphql library versions prior to 7.5.6 fail to verify the authenticity of a client-supplied, pre-decoded JWT object passed through GraphQL subscription connectionParams. As a result, any unauthenticated remote client that can open a GraphQL-over-WebSocket connection can forge arbitrary JWT claims (e.g. sub, roles) in connectionParams.jwt and have them accepted as authenticated identity for the purposes of @authentication and @subscriptionsAuthorization directive evaluation.… Source description excerpt; complete tracked detail loads below.
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What is affected
Reportedneo4j — graphql. Product-level identification only; no affected-version conclusion is available from this field.
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Urgency and basis
ReportedTrack · 112.4
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Exploitation evidence
Not reportedNot reported by tracked sources.
What to do
ReportedA source remediation link is available. Validate that guidance against the affected product and your environment.
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Evidence detail
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