CVE-2026-62350: taosdata TDengine code injection in User-Defined Functions

CVE-2026-62350 · Severity: high · CVSS 7.2 · Published 2026-07-15

TDengine is an open-source time-series database designed for Internet of Things (IoT) applications. A security vulnerability allows an authorized user with specific administrative privileges to upload and execute malicious code directly on the database server. If exploited, this could lead to a complete takeover of the server, allowing the attacker to steal data, disrupt operations, or use the server as a foothold for further attacks.

Technologies: TAOS Data TDengine. Vendors: TAOS Data.

Quick answers

Is CVE-2026-62350 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-62350 being exploited in the wild.
How severe is CVE-2026-62350?
High severity, with a CVSS score of 7.2, published 15 July 2026.
Which products and versions are affected?
TAOS Data TDengine Prior to 3.4.1.15.
Is there a fix for CVE-2026-62350?
A patch was published on 2026-07-15: Fix confirmed in version 3.4.1.15 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-62350 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2026-62350?
Check whether you run TAOS Data TDengine at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A code injection vulnerability (CWE-94) exists in TDengine's User-Defined Functions (UDF) implementation. The vulnerability stems from a lack of proper validation when a user with 'create udf' privileges uploads a shared library (.so file) to the server. An attacker can upload a malicious binary, register it as a UDF, and subsequently trigger arbitrary C code execution with the privileges of the database process by calling the function via a standard SQL query. This is a remote attack, though it requires high privileges (PR:H). The issue is resolved in TDengine version 3.4.1.15.

Affected products

  • taosdata TDengine Prior to 3.4.1.15

Timeline

  • 2026-06-26: advisory: Initial GitHub Security Advisory published
  • 2026-07-15: disclosed: NVD publication date
  • 2026-07-15: patched: Fix confirmed in version 3.4.1.15

References

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