Vulnerability · Published Jul 15, 2026 · Assigned by GitHub_M

CVE-2026-62355TDengine: Standard User permission unexpect

Medium 5.4

In plain English

A medium-severity privilege mismanagement in TDengine from taosdata. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.2%top 86.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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 (as reported)

Vendor	Product	Versions
taosdata	TDengine	< 3.4.1.15

Weakness: CWE-269 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References

https://github.com/taosdata/TDengine/security/advisories/GHSA-fmp7-rf4r-8q7p x_refsource_CONFIRM