CVE-2026-62349

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.

CVSS Vector

References

• https://github.com/taosdata/TDengine/security/advisories/GHSA-4v5h-fxjw-vrmq
• https://github.com/taosdata/TDengine/security/advisories/GHSA-4v5h-fxjw-vrmq