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CVE-2026-62849— ThingLinks TDengine TDS APIs vulnerable to unauthenticated SQL injection

Quick assessment

Affected
mqttsnet thinglinks
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.

ThingLinks 是一个企业级物联网（IoT）平台。在 1.4.0 版本之前， 中存在一个无需身份验证的 SQL 注入漏洞。该漏洞允许攻击者将受控的 JSON 字段值提交至 接口，这些值会传递至 模块，进而导致不安全的 SQL 语句构造。远程且未通过身份验证的攻击者可借此篡改 TDengine 的时间序列数据，包括插入非预期的数据行或覆盖已有的读数。受影响的攻击面为 TDS 模块的“插入表数据”流程以及 TDengine mapper 的 SQL 生成逻辑。该问题已在 1.4.0 版本中修复。

CVSS 9.1 · Critical
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I. Basic Information for CVE-2026-62849

Vulnerability Information
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Vulnerability Title
ThingLinks TDengine TDS APIs vulnerable to unauthenticated SQL injection
Source: CVE Program / CVE List V5
Vulnerability Description
ThingLinks is an enterprise IoT platform. Prior to 1.4.0, an unauthenticated SQL injection vulnerability in the `TDengine TDS APIs` allows request-controlled JSON field values submitted to `/anyUser/tds/insertTableData` to reach unsafe SQL construction in the `TDS mapper`. A remote unauthenticated attacker can tamper with TDengine time-series data, including inserting unintended rows or overwriting existing readings. The affected surface is the TDS module's insert-table-data flow and TDengine mapper SQL generation. This issue is fixed in version 1.4.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
mqttsnet thinglinks < 1.4.0 -

II. Public POCs for CVE-2026-62849

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III. Intelligence Information for CVE-2026-62849

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Other References for CVE-2026-62849 (3)

IV. Related Vulnerabilities

Same product: thinglinks
Same vendor: mqttsnet
Same weakness: CWE-89