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CVE-2026-40006NVD

Vulnerability 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.
Severity Level
HIGH(7.5)
Published Date
Jul 10, 2026
Last Modified
Jul 10, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.32%Probability
Root Weakness (CWE)
Refer to the official MITRE database for detailed architectural specifications regarding this weakness.
CVSS v3.1 Base Metrics
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityNone
AvailabilityHigh