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

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-15 · updated 2026-10-24
Weakness: CWE-862

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

taosdata TDengine: before 3.4.1.15

References

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

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