CVE-2026-62349
High
Description
TDengine is an open source, time-series database optimized for Internet of Things devices. In 3.4.1.6 and earlier, source/libs/parser/src/parUtil.c trimString() checks space for only one byte before processing SQL string escape sequences \%, \_, or \x, allowing a one-byte out-of-bounds write to the stack buffer tmpTokenBuf that can cause denial of service and potentially remote code execution. This issue is fixed in version 3.4.1.14.
SeverityHigh
CVSS8.3
Exploit probability—
ProductTDengine
PublishedJul 15, 2026
First seenJul 15, 2026
Weakness typeCWE-121CWE-121CWE-787Out-of-bounds write
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| taosdata TDengine | < 3.4.1.14 | — |
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