CVE-2026-62353
MEDIUMTDengine: Authenticated Out-of-Bounds Read in SQL Lexer tGetToken
Title source: cnaDescription
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.
References (1)
Core 1
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/taosdata/TDengine/security/advisories/GHSA-5r9p-3j4f-gmgp
Scores
CVSS v3
5.4
EPSS
0.0025
EPSS Percentile
16.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-125
CWE-126
Status
published
Products (1)
taosdata/TDengine
< 3.4.1.14
Published
Jul 15, 2026
Tracked Since
Jul 16, 2026