High [CVE-2026-40454] Out-of-bounds Read, Improper Input Validation vulnerability in Apache IoTDB C++ client
This high-severity Apache Software Foundation advisory covers CVE-2026-40454 affecting Apache IoTDB.
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Summary
Out-of-bounds Read, Improper Input Validation vulnerability in Apache IoTDB C++ client. Out-of-bounds reads in IoTDB C++ client TsBlock deserializer crash client process on malformed server data.
This issue affects Apache IoTDB C++ client: from 1.3.5 before 1.3.8, from 2.0.5 before 2.0.10. Users are recommended to upgrade to version 2.0.10, which fixes the issue.
- 1.3.5 through 1.3.8
- 2.0.5 through 2.0.10.
Official advisory · high-confidence parse· fetched 4 months ago·verify at source
- 2.0.10
- 1.3.8
Official advisory · high-confidence parse· fetched 4 months ago·verify at source
Mitigation checklist
- Users are recommended to upgrade to version 2.0.10, which fixes the issue.
Official advisory · high-confidence parse· fetched 4 months ago·verify at source
More Apache Software Foundation advisories
- CVE-2026-59229Oct 21, 2026Apache IoTDB: The Legacy Pipe receiver protocol (handshake / sendPipeData) uses
- CVE-2026-59562Oct 21, 2026Apache IoTDB authentication bypass
- CVE-2026-58663Oct 21, 2026authentication bypass vulnerability exists in Apache IoTDB's Thrift RPC service This issue
- CVE-2026-40452Jul 10, 2026Apache IoTDB improper access control
- CVE-2026-40009Jul 10, 2026Apache IoTDB privilege escalation
- CVE-2026-40008Jul 10, 2026Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')
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