High [CVE-2026-40006] Apache IoTDB: Memory Allocation with Excessive Size Value, Allocation of Resources Without Limits or Throttling, Missing…
This high-severity Apache Software Foundation advisory covers CVE-2026-40006 affecting Apache IoTDB.
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Summary
Memory Allocation with Excessive Size Value, Allocation of Resources Without Limits or Throttling, Missing Authentication for Critical Function vulnerability in Apache IoTDB. When pipe_air_gap_receiver_enabled=true, the IoTDB AirGap pipe receiver accepts raw TCP connections on port 9780 with no authentication.
The readLength method reads an attacker-controlled 32-bit integer from the socket and readData passes it directly to new byte[length] with no upper-bound check. An unauthenticated attacker can cause the JVM to attempt an allocation of up to 2,147,483,647 bytes per connection, exhausting heap memory and crashing or severely degrading the DataNode process.
This issue affects Apache IoTDB: from 1.0.0 before 2.0.10. Users are recommended to upgrade to version 2.0.10, which fixes the issue.
- 1.0.0 through 2.0.10.
Official advisory · high-confidence parse· fetched 4 months ago·verify at source
- 2.0.10
Official advisory · high-confidence parse· fetched 4 months ago·verify at source
Mitigation checklist
- Users are recommended to upgrade to version 2.0.10, which fixes the issue.
Official advisory · high-confidence parse· fetched 4 months ago·verify at source
More Apache Software Foundation advisories
- CVE-2026-59229Oct 21, 2026Apache IoTDB: The Legacy Pipe receiver protocol (handshake / sendPipeData) uses
- CVE-2026-59562Oct 21, 2026Apache IoTDB authentication bypass
- CVE-2026-58663Oct 21, 2026authentication bypass vulnerability exists in Apache IoTDB's Thrift RPC service This issue
- CVE-2026-40454Jul 10, 2026Out-of-bounds Read, Improper Input Validation vulnerability in Apache IoTDB C++ client
- CVE-2026-40452Jul 10, 2026Apache IoTDB improper access control
- CVE-2026-40009Jul 10, 2026Apache IoTDB privilege escalation
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