Vulnerability 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 Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/taosdata/TDengine/security/advisories/GHSA-4v5h-fxjw-vrmq
- https://github.com/taosdata/TDengine/security/advisories/GHSA-4v5h-fxjw-vrmq
FAQ
What is CVE-2026-62349?
CVE-2026-62349 is a vulnerability with a CVSS score of 8.3 (HIGH). 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 p...
How severe is CVE-2026-62349?
CVE-2026-62349 has been rated HIGH with a CVSS base score of 8.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-62349?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.