CVE-2026-40007

Apache IoTDB: Unauthenticated unbounded recursion in IoTDB AirGap receiver's E-language prefix parser causes per-connection StackOverflowError

Published Jul 10, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
Uncontrolled Recursion, Uncontrolled Resource Consumption vulnerability in Apache IoTDB.
When pipe_air_gap_receiver_enabled=true, the IoTDB AirGap receiver's
readLength method calls itself recursively each time it recognises the
E-language prefix in socket data, with no depth limit. An unauthenticated
attacker can send a stream of repeated E-language prefixes that drives the
recursion arbitrarily deep, exhausting the receiver thread's JVM stack and
raising StackOverflowError.


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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Apache
Apache iotdb
Vendors & Products Apache
Apache iotdb
Type Values Removed Values Added
Description Uncontrolled Recursion, Uncontrolled Resource Consumption vulnerability in Apache IoTDB. When pipe_air_gap_receiver_enabled=true, the IoTDB AirGap receiver's readLength method calls itself recursively each time it recognises the E-language prefix in socket data, with no depth limit. An unauthenticated attacker can send a stream of repeated E-language prefixes that drives the recursion arbitrarily deep, exhausting the receiver thread's JVM stack and raising StackOverflowError. 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.
Title Apache IoTDB: Unauthenticated unbounded recursion in IoTDB AirGap receiver's E-language prefix parser causes per-connection StackOverflowError
Weaknesses CWE-400
CWE-674
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
apache
Published
Updated
Jul 10, 2026, 2:54 PM
Reserved
Apr 8, 2026, 8:42 AM
Status
Deferred
Published
Jul 10, 2026, 8:16 AM
Modified
Oct 25, 2026, 3:10 PM