CVE-2026-62351 | TDengine is a time-series database optimized for Internet of… | CVSS 7.5 HIGH

Description

TDengine is a time-series database optimized for Internet of Things devices. Prior to 3.4.1.15, source/libs/transport/src/transComm.c transDecompressMsg() read STransCompMsg.contLen when pHead->comp == 1 without first validating that the RPC packet contained the 8-byte STransCompMsg structure, causing an unauthenticated out-of-bounds read, uncontrolled allocation, integer underflow, and server crash. This issue is fixed in version 3.4.1.15.

Metadata

CVE ID: CVE-2026-62351
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-07-13 21:42 UTC
Published: 2026-07-15 19:08 UTC
Last updated: 2026-07-15 19:33 UTC
Primary CWE: CWE-125
CWE-125: Out-of-bounds Read
Vendor / Product: taosdata / TDengine
Sources: cve.org · NVD

Severity & Metrics

7.5 HIGH CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: yes
Tech. Impact: partial

Affected products (1)

Vendor	Product	Platform	Versions
taosdata	TDengine	—	< 3.4.1.15

Weakness (CWE)

CWE	Source	Description
CWE-125	cna	CWE-125: Out-of-bounds Read

CVSS scores (1)

Score	Severity	Version	Source	Vector
7.5	HIGH	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References (1)

https://github.com/taosdata/TDengine/security/advisories/GHSA-8pc4-p252-f5m7 https://github.com/taosdata/TDengine/security/advisories/GHSA-8pc4-p252-f5m7