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CVE-2026-62350— TDengine: UDF lead to RCE

Quick assessment

Affected
taosdata TDengine
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

TDengine是中国TDengine公司开源的一款开源、高性能、云原生时间序列数据库。 TDengine 3.4.1.15之前版本存在代码注入漏洞，该漏洞源于具有创建UDF权限的用户可上传特制共享库并安装为用户自定义函数，通过数据库查询在TDengine服务器端执行任意C代码。

CVSS 7.2 · High EPSS 0.54% · P43

Affected Version Matrix 1

VendorProduct Version RangeStatus
taosdata TDengine < 3.4.1.15 affected
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I. Basic Information for CVE-2026-62350

Vulnerability Information
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Vulnerability Title
TDengine: UDF lead to RCE
Source: CVE Program / CVE List V5
Vulnerability Description
TDengine is an open source, time-series database optimized for Internet of Things devices. Prior to 3.4.1.15, a user with create udf privilege could upload a crafted shared library and install it as a user-defined function, such as eval, then execute arbitrary C code on the TDengine server side through database queries. This issue is fixed in version 3.4.1.15.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
TDengine 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TDengine是中国TDengine公司开源的一款开源、高性能、云原生时间序列数据库。 TDengine 3.4.1.15之前版本存在代码注入漏洞，该漏洞源于具有创建UDF权限的用户可上传特制共享库并安装为用户自定义函数，通过数据库查询在TDengine服务器端执行任意C代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
taosdata TDengine < 3.4.1.15 -

II. Public POCs for CVE-2026-62350

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III. Intelligence Information for CVE-2026-62350

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Vendor Advisories for CVE-2026-62350 (1)

Same Patch Batch · taosdata · 2026-07-15 · 6 CVEs total

CVE-2026-62349 8.3 HIGH TDengine: Off-by-One Buffer Overflow
CVE-2026-62351 7.5 HIGH TDengine: Unauthenticated Remote Denial of Service via Out-of-Bounds Read in transDecompre
CVE-2026-62348 5.4 MEDIUM TDengine: KILL SSMIGRATE missing authorization lets low-privilege users interrupt shared-s
CVE-2026-62353 5.4 MEDIUM TDengine: Authenticated Out-of-Bounds Read in SQL Lexer tGetToken
CVE-2026-62355 5.4 MEDIUM TDengine: Standard User permission unexpect

IV. Related Vulnerabilities

Same product: TDengine
Same vendor: taosdata
Same weakness: CWE-94

V. Comments for CVE-2026-62350

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