High severity · published Aug 10, 2026
CVE-2026-44630
Apache IoTDB: RPC service denial of service via unchecked Thrift string length
7.5
CVSS
0.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 48% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AI
Apache IoTDB · Apache Software Foundation
before 1.3.8; 2.0.0 before 2.0.10 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-44630
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-44630
lists.apache.org
https://lists.apache.org/thread/tfsgd9whbq79lgjvdzj44hw0fhsofly8
www.openwall.com
http://www.openwall.com/lists/oss-security/2026/08/10/1
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