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CVE-2026-40006 is a denial-of-service vulnerability in Apache IoTDB affecting versions 1.0.0 through before 2.0.10. When the AirGap pipe receiver is enabled, the DataNode accepts unauthenticated raw TCP connections and processes an attacker-controlled 32-bit length value. The vulnerable logic reads the supplied length and passes it directly to a byte-array allocation without enforcing an upper bound, causing the JVM to attempt excessively large heap allocations. This can be triggered remotely without authentication against the AirGap pipe receiver component and results in memory exhaustion in the DataNode process.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
8 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.