What is CVE-2026-62349?

CVE-2026-62349 is a high-severity vulnerability in Taosdata Tdengine, classified under Stack-based Buffer Overflow. CVSS score: 8.3/10. Published 2026-07-15.

How severe is CVE-2026-62349?

High severity. CVSS v3 base score is 8.3 out of 10.

Buffer overflow in Taosdata Tdengine

CVE-2026-62349

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 \…

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H.

Affected products

Taosdata Tdengine — versions < 3.4.1.14

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow
CWE-787 — Out-of-bounds Write

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-62349?: CVE-2026-62349 is a high-severity vulnerability in Taosdata Tdengine, classified under Stack-based Buffer Overflow. CVSS score: 8.3/10. Published 2026-07-15.
How severe is CVE-2026-62349?: High severity. CVSS v3 base score is 8.3 out of 10.