CVE-2026-44630 Apache IoTDB: RPC service denial of service via unchecked Thrift string length
Remote unauthenticated attackers can cause denial of service in Apache IoTDB by sending crafted Thrift frames that trigger excessive memory allocation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-44630?
CVE-2026-44630 is a high-severity denial of service vulnerability in Apache IoTDB, published on 10 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Improper validation of length fields in the Apache IoTDB RPC service may allow a remote unauthenticated attacker to cause a denial of service. By sending a crafted malformed Thrift frame, an attacker can cause IoTDB to allocate an excessive amount of memory and crash with an OutOfMemoryError.
This issue affects Apache IoTDB: before 1.3.8, from 2.0.0 before 2.0.9.
Users are recommended to upgrade to version 2.0.10, which fixes the issue.
Which versions are affected by CVE-2026-44630?
How do I fix CVE-2026-44630?
No fix has been published for CVE-2026-44630 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-44630 being exploited?
There is no known exploitation of CVE-2026-44630 in the wild and no public exploit code.
Sources
Also known as GHSA-q69g-x875-pprm.