AirGap interruption via unbounded prefix recursion
Published Jul 10, 2026 · Updated Jul 10, 2026
Uncontrolled recursion in Apache IoTDB 1.0.0 through 2.0.9 allows remote attackers to interrupt AirGap receiver processing. The AirGap receiver's readLength method calls itself for every recognized E-language prefix without limiting recursion depth, so a repeated-prefix stream exhausts the receiver thread's JVM stack and raises StackOverflowError. The unauthenticated network path exists only when pipe_air_gap_receiver_enabled is true, and the reported failure is bounded to the receiver thread.
Summary
What happened
Uncontrolled recursion in Apache IoTDB 1.0.0 through 2.0.9 allows remote attackers to interrupt AirGap receiver processing. The AirGap receiver's readLength method calls itself for every recognized E-language prefix without limiting recursion depth, so a repeated-prefix stream exhausts the receiver thread's JVM stack and raises StackOverflowError. The unauthenticated network path exists only when pipe_air_gap_receiver_enabled is true, and the reported failure is bounded to the receiver thread.
The record
- CVE
- CVE-2026-40007
- Published
- Jul 10, 2026
- Updated
- Jul 10, 2026
- Vendor
- The Apache Software Foundation
- Product
- Apache IoTDB
- Classifications
- CWE-400, CWE-674, T1499.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 10, 2026CVE publishedPublication date reported by the CVE source.
- Jul 10, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.0.0 <2.0.10
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
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Technologies
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Your stack
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