CVE-2026-62348 TDengine: KILL SSMIGRATE missing authorization lets low-privilege users interrupt shared-storage migrations
Low-privilege users can interrupt shared-storage migrations in TDengine Enterprise due to a missing authorization check, causing denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-62348?
CVE-2026-62348 is a medium-severity missing authorization vulnerability in taosdata TDengine, published on 15 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
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.
Weakness: CWE-862
Which versions are affected by CVE-2026-62348?
How do I fix CVE-2026-62348?
No fix has been published for CVE-2026-62348 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-62348 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-62348 exists.