What’s Vulnerable › Vulnerabilities

CVE-2026-44630: Apache IoTDB: RPC service denial of service via unchecked Thrift string length

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-10 · updated 2026-10-23
• Weakness: CWE-400

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.

Affected products

• Apache Software Foundation Apache IoTDB: before 1.3.8; from 2.0.0 before 2.0.10 — fixed in 1.3.8, 2.0.10

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache IoTDB 1.3.8, 2.0.10. Check the vendor advisory for mitigations.

References

• https://lists.apache.org/thread/tfsgd9whbq79lgjvdzj44hw0fhsofly8
• http://www.openwall.com/lists/oss-security/2026/08/10/1

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