Signal is active with 1 mentions in latest observed window
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NVD description
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.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
CVE-2026-30870 PowerSync Service Sync Stream Vulnerability Allows Unauthorized Data Access in 1.20.0 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-30870
Post summary
CVE-2026-30870 is a vulnerability in PowerSync Service 1.20.0 that permits unauthorized data access, with no PoC, exploit code, active exploitation, or patch information provided.