CVE-2026-40009 Apache IoTDB: Authenticated users can escalate to full tree-path access by renaming themselves to __internal_auditor
Authenticated users can escalate privileges to full tree-path access by renaming themselves to a reserved internal auditor account.
- 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-2026-40009?
CVE-2026-40009 is a medium-severity vulnerability in Apache IoTDB, published on 10 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Improper Privilege Management, Improper Access Control vulnerability in Apache IoTDB. Authenticated users can escalate to full tree-path access by renaming themselves to __internal_auditor.
This issue affects Apache IoTDB: from 2.0.8 before 2.0.10.
Users are recommended to upgrade to version 2.0.10, which fixes the issue.
Which versions are affected by CVE-2026-40009?
How do I fix CVE-2026-40009?
No fix has been published for CVE-2026-40009 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-40009 being exploited?
There is no known exploitation of CVE-2026-40009 in the wild and no public exploit code.
Sources
Also known as GHSA-hmrq-mg25-fh98.