CVE-2026-62353 | TDengine is a time-series database optimized for Internet of… | CVSS 5.4 MEDIUM

Description

TDengine is a time-series database optimized for Internet of Things devices. Prior to 3.4.1.14, source/libs/parser/src/parTokenizer.c tGetToken() incremented past a trailing backslash in a SQL string literal such as 'abc\ and read one byte beyond the null terminator, allowing an authenticated user who can submit SQL queries to crash the server and possibly leak adjacent memory. This issue is fixed in version 3.4.1.14.

Metadata

CVE ID: CVE-2026-62353
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-07-13 21:42 UTC
Published: 2026-07-15 19:08 UTC
Last updated: 2026-07-15 19:28 UTC
Primary CWE: CWE-125
CWE-125: Out-of-bounds Read
Vendor / Product: taosdata / TDengine
Sources: cve.org · NVD

Severity & Metrics

5.4 MEDIUM CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: no
Tech. Impact: partial

Affected products (1)

Vendor	Product	Platform	Versions
taosdata	TDengine	—	< 3.4.1.14

Weakness (CWE)

CWE	Source	Description
CWE-125	cna	CWE-125: Out-of-bounds Read
CWE-126	cna	CWE-126: Buffer Over-read

CVSS scores (1)

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

References (1)

https://github.com/taosdata/TDengine/security/advisories/GHSA-5r9p-3j4f-gmgp https://github.com/taosdata/TDengine/security/advisories/GHSA-5r9p-3j4f-gmgp