CVE-2026-40454 PUBLISHED

Apache IoTDB C++ client: Out-of-bounds reads in C++ client TsBlock deserializer crash client process on malformed server data

Assigner: apache
Reserved: 13.04.2026 Published: 10.07.2026 Updated: 10.07.2026

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.

Product Status

Vendor Apache Software Foundation
Product Apache IoTDB C++ client
Versions Default: unaffected
  • affected from 1.3.5 to 1.3.8 (excl.)
  • affected from 2.0.5 to 2.0.10 (excl.)

Credits

  • bugbunny.ai finder

References

Problem Types

  • CWE-125 Out-of-bounds Read CWE
  • CWE-20 Improper Input Validation CWE