Vulnerability DatabaseCVE-2026-40454
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CVE-2026-40454
Published:July 10, 2026
Updated:July 21, 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.
Affected Packages
https://github.com/apache/iotdb.git (GITHUB):
Affected version(s) >=v2.0.5 <v2.0.10
Fix Suggestion:
Update to version v2.0.10
Related Resources (2)
https://lists.apache.org/thread/9wml325g6bpovw0jf5ymtc3xl7fwlkrn
http://www.openwall.com/lists/oss-security/2026/07/10/8
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CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Out-of-bounds Read
CWE-125
Improper Input Validation
CWE-20
EPSS
Base Score:
0.28