CVE-2026-123338
Received Received - Intake

Heap Memory Corruption in Apache DataSketches C++

Publication date: 2026-11-13

Last updated on: 2026-11-13

Assigner: Apache Software Foundation

Description
Out-of-bounds Write vulnerability in Apache DataSketches C++. An application that deserializes a REQ sketch from an untrusted source can have heap memory corrupted by a crafted sketch, because the serialized compactor headers were not validated. This issue affects Apache DataSketches C++: from 3.0.0 through 5.3.0. Users are recommended to upgrade to version 5.3.1, which fixes the issue.

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Meta Information

Published
2026-11-13
Last Modified
2026-11-13
Generated
2026-11-13
EPSS Evaluated
N/A
NVD
CVE-2026-123338
EUVD
EUVD-2026-125274

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Apache Software Foundation Apache DataSketches C++ From 3.0.0 (inc) to 5.3.0 (inc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-787 The product writes data past the end, or before the beginning, of the intended buffer.

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