TDengine: Standard User permission unexpect
Priority LOW 24CWE-269Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Privilege escalation
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-269.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0023 13th percentileScored 2026-11-07
Fix Fixed TDengine (taosdata): 3.4.1.15
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA TDengine (taosdata) Fixed in 3.4.1.15
Timeline
- 2026-10-02 Threatist record created from CVE-2026-62355
More taosdata vulnerabilities
- TI-2023-16957 Command Injection Vulnerability in `Release PR Merged` Workflow in taosdata/grafanaplugin CVSS 3.1CRITICAL 9.8
- TI-2026-44505 TDengine: Unauthenticated Remote Denial of Service via Out-of-Bounds Read in transDecompressMsg CVSS 3.1HIGH 7.5
- TI-2026-44503 TDengine: Off-by-One Buffer Overflow CVSS 3.1HIGH 8.3
- TI-2026-44504 TDengine: UDF lead to RCE CVSS 3.1HIGH 7.2
- TI-2023-19882 TDengine Database Denial-of-Service CVSS 3.1MEDIUM 6.5
- TI-2026-44506 TDengine: Authenticated Out-of-Bounds Read in SQL Lexer tGetToken CVSS 3.1MEDIUM 5.4
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences