CVE-2020-17533: Apache Accumulo

High severity, CVSS 8.1. EPSS: 3.7% chance of exploitation in the next 30 days.

Apache Accumulo versions 1.5.0 through 1.10.0 and version 2.0.0 do not properly check the return value of some policy enforcement functions before permitting an authenticated user to perform certain administrative operations. Specifically, the return values of the 'canFlush' and 'canPerformSystemActions' security functions are not checked in some instances, therefore allowing an authenticated user with insufficient permissions to perform the following actions: flushing a table, shutting down Accumulo or an individual tablet server, and setting or removing system-wide Accumulo configuration properties.

Affected products

• Apache Accumulo: from 1.5.0, up to and including 1.10.0; version 2.0.0 only

Published 2020-12-29. Last modified 2026-06-17.