EUVD-2026-42834
GHSA-qx9j-cv9x-384r
Vulnerability Assessment
| Weakness |
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Memory allocation limits
|
Get an e-mail when this CVE is exploited, patched or re-scored. Free account.
Alert meAnalysisAIv1 – Jul 10, 2026
Unauthenticated denial of service in Apache IoTDB (1.0.0 through 2.0.9) allows remote attackers to crash or degrade the DataNode process when the AirGap pipe receiver is enabled. The receiver's readLength method reads an attacker-controlled 32-bit length field from a raw TCP connection on port 9780 and passes it directly to new byte[length], letting a single connection trigger a heap allocation of up to ~2 GB and exhaust JVM memory. No public exploit has been identified at time of analysis, but exploitation is trivial once the feature is enabled, and Apache has released a fixed version (2.0.10).
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Know when Apache Iotdb gets its next vulnerability
- Watch products and get an email when something new is published
- Check this CVE against your own stack and servers
- Exploit and PoC references, threat intelligence from 22 sources
No credit card · 7-day full trial
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Primary rating from Vendor (apache) · only source for this CVE.
CVSS VectorVendor: apache
Lifecycle Timeline
1DescriptionCVE.org
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.
Articles & Coverage 2
Executive ViewAI
Apache IoTDB versions 1.0.0-2.0.9 contain an unauthenticated remote denial-of-service vulnerability in the AirGap pipe receiver that allows attackers to exhaust JVM memory and crash DataNode processes. Organizations relying on IoTDB for time-series data storage face operational disruption if the vulnerable feature is enabled and exposed on port 9780.
Within 24 hours: Audit all IoTDB deployments to identify instances with AirGap pipe receiver enabled and exposed to untrusted networks. Within 7 days: Upgrade affected systems to Apache IoTDB version 2.0.10. Within 30 days: Complete migration to patched version across all production and staging environments.
Apply vendor patch: Apache IoTDB 2.0.10. For systems unable to immediately patch, disable the AirGap pipe receiver or restrict port 9780 to trusted internal networks only.
Threat Intelligence Overview
NVD
CVE.org
EPSS
Vulnrichment
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
More in Apache Iotdb
View allUnsafe reflection in Apache IoTDB's pipe processor lets a user-supplied fully qualified Java class name be loaded and in
Authentication bypass via capture-replay in Apache IoTDB (1.0.0 through 2.0.9) lets attackers reuse stale credentials ag
Arbitrary file write in Apache IoTDB DataNode (versions 1.3.3 up to but not including 2.0.8) allows attackers who can re
Arbitrary file write in Apache IoTDB (versions 1.0.0 through 2.0.9) lets remote attackers plant files anywhere the IoTDB
Denial of service in Apache IoTDB's Thrift-based RPC service allows remote unauthenticated attackers to crash the databa
Denial of service in Apache IoTDB versions 1.3.3 through 2.0.7 lets remote attackers crash the DataNode process by submi
Authorization bypass in Apache IoTDB's REST API endpoint /rest/v2/fastLastQuery allows authenticated users to access las
Denial of service in Apache IoTDB versions 1.0.0 up to (but not including) 2.0.10 lets an unauthenticated network attack
Authentication bypass via sessionId spoofing in Apache IoTDB (1.3.3 through versions before 2.0.8) lets a remote, unauth
Privilege escalation in Apache IoTDB 2.0.8 through 2.0.9 allows any authenticated low-privilege user to rename their own
Path traversal in Apache IoTDB (1.0.0 before 1.3.6 and 2.0.0 before 2.0.7) allows remote attackers to read and write fil
Path traversal in Apache IoTDB (versions 1.0.0–1.3.5 and 2.0.0–2.0.5) lets remote unauthenticated attackers reference fi
Exploit-DB