CVE-2026-62355 — MEDIUM (5.4)

Vulnerability 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.

CVSS Score

5.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Related Weaknesses (CWE)

CWE-269

References

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

FAQ

What is CVE-2026-62355?

CVE-2026-62355 is a vulnerability with a CVSS score of 5.4 (MEDIUM). 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 ...

How severe is CVE-2026-62355?

CVE-2026-62355 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-62355?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.