CVE-2026-62355: Taosdata Tdengine

Medium severity, CVSS 5.4. EPSS: 0.2% chance of exploitation in the next 30 days.

TDengine is an open source, time-series database optimized for Internet of Things devices. Prior to 3.4.1.15, a Data Reader admin_user on a TDengine Cloud DB instance could run create udf even though standard users should have read-only permissions for non-database objects and show dnodes and create user were denied. This issue is fixed in version 3.4.1.15.

Affected products

• Taosdata Tdengine: before 3.4.1.15 (fixed in 3.4.1.15)

Published 2026-07-15. Last modified 2026-07-15.