CVE-2026-40007
highpriority · track · 0EPSS 0.005 · 42 %ileEUEPSS · scored 2026-10-28
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (1)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- http://www.openwall.com/lists/oss-security/2026/07/10/4cnnvd
- https://iotdb.apache.org/Download/Patchcnnvd
- https://lists.apache.org/thread/tr23kh6kp8drrsv8ypv1mqm4v5kyy23mcnnvd
- https://lists.apache.org/thread/tr23kh6kp8drrsv8ypv1mqm4v5kyy23menisa_euvd
- http://www.openwall.com/lists/oss-security/2026/07/10/4nvd
- https://lists.apache.org/thread/tr23kh6kp8drrsv8ypv1mqm4v5kyy23mnvd
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