CVE-2026-30870
CVE-2026-30870 · Some sync filters in PowerSync Service ignored using `config.edition: 3`
This page contains facts from public vulnerability sources. Check the original advisory before updating.
PowerSync Service is the server-side component of the PowerSync sync engine. In version 1.20.0, when using new sync streams with config.edition: 3, certain subquery filters were ignored when determining which data to sync to users. Depending on the sync stream configuration, this could result in authenticated users syncing data that should have been restricted. Only queries that gate synchronization using subqueries without partitioning the result set are affected. This vulnerability is fixed in 1.20.1.
CVSS 6.5 · Medium · EPSS 0.2% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
powersync-service
- Versions
- < 1.20.1: Affected
No fix published
service-core
- Versions
- < 1.20.1: Affected
No fix published
service-sync-rules
- Versions
- < 0.33.0: Affected
No fix published
@powersync/service-core npm
- Versions
- 1.20.0
- Affected ranges
- SEMVER: ≥ 1.20.0, < 1.20.1
Update to 1.20.1
@powersync/service-sync-rules npm
- Versions
- 0.32.0
- Affected ranges
- SEMVER: ≥ 0.32.0, < 0.33.0
Update to 0.33.0