Vulnerability · Published Jul 15, 2026 · Assigned by GitHub_M

CVE-2026-62348TDengine: KILL SSMIGRATE missing authorization lets low-privilege users interrupt shared-storage migrations

Medium 5.4

In plain English

A medium-severity missing authorization in TDengine from taosdata. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.3%top 83.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

TDengine is a time-series database optimized for Internet of Things devices. Prior to 3.4.1.15, TDengine Enterprise allowed an authenticated low-privilege SQL user to run KILL SSMIGRATE <id> against an active shared-storage migration because mndProcessKillSsMigrateReq called mndKillSsMigrate while the intended MND_OPER_SSMIGRATE_DB privilege check was commented out. This issue is fixed in version 3.4.1.15.

Affected products (as reported)

Vendor	Product	Versions
taosdata	TDengine	< 3.4.1.15

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

References

https://github.com/taosdata/TDengine/security/advisories/GHSA-67g2-ffwr-7x9h x_refsource_CONFIRM