Outage in Neo4j Aura
Subset of MERGE queries lead to setting unexpected property values
Resolved MinorIncident Report
A recent update resulted in MERGE queries which referenced the same merged property on both the left and right hand side of an ON MATCH SET or ON CREATE SET clause deleting that property from the node, or setting it to an invalid value during query runtime. The node being matched against must have had at least one property uniqueness constraint present.
A fix has been identified and will be applied as soon as possible. Instances marked as "Production" are not impacted.
Components affected
Neo4j Aura AuraDB Free (*.databases.neo4j.io) Neo4j Aura AuraDB Business Critical (*.databases.neo4j.io) on AWS Neo4j Aura AuraDS on GCP (*.databases.neo4j.io) Neo4j Aura AuraDB Professional on GCP (*.databases.neo4j.io) Neo4j Aura AuraDS Enterprise on GCP (*.databases.neo4j.io) Neo4j Aura AuraDB Virtual Dedicated Cloud on Azure (*.databases.neo4j.io) Neo4j Aura AuraDB Business Critical (*.databases.neo4j.io) on GCP Neo4j Aura AuraDS on AWS (*.databases.neo4j.io) Neo4j Aura AuraDB Business Critical (*.databases.neo4j.io) on Azure Neo4j Aura AuraDS Enterprise on AWS (*.databases.neo4j.io) Neo4j Aura AuraDS on Azure (*.databases.neo4j.io) Neo4j Aura AuraDS Enterprise on Azure (*.databases.neo4j.io) Neo4j Aura AuraDB Virtual Dedicated Cloud on GCP (*.databases.neo4j.io) Neo4j Aura AuraDB Professional on AWS (*.databases.neo4j.io) Neo4j Aura AuraDB Professional on Azure (*.databases.neo4j.io) Neo4j Aura AuraDB Virtual Dedicated Cloud on AWS (*.databases.neo4j.io)Trusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
RESOLVED
about 2 months ago - at 03/04/2026 03:19PM
The fix has been fully deployed to all impacted instances. This incident is now resolved.
MONITORING
about 2 months ago - at 03/04/2026 02:07PM
The fix has now been deployed to those instances impacted and we are monitoring the situation.
IDENTIFIED
about 2 months ago - at 03/04/2026 04:52AM
The fix is being deployed and the status page will be updated upon completion of the full deployment
IDENTIFIED
about 2 months ago - at 03/04/2026 01:39AM
The fix is being deployed and the status page will be updated upon completion of the full deployment of the fix.
IDENTIFIED
about 2 months ago - at 03/03/2026 09:35PM
A recent update resulted in MERGE queries which referenced the same merged property on both the left and right hand side of an ON MATCH SET or ON CREATE SET clause deleting that property from the node, or setting it to an invalid value during query runtime. The node being matched against must have had at least one property uniqueness constraint present.
A fix has been identified and will be applied as soon as possible. Instances marked as "Production" are not impacted.
Latest Neo4j Aura outages
Console is not available - about 2 months ago
Middle East Availability - AWS - about 2 months ago
Limited set of queries impacted by Cypher 25 issue - 3 months ago
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