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.
Analysis
Analysis and contextual insights are available on OpenCVE Cloud.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Apache Software Foundation | Apache DataSketches C++ | unaffected |
|
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No vendor fix or workaround currently provided.
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Fri, 13 Nov 2026 10:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Apache DataSketches C++: Out-of-bounds write in REQ sketch deserialization allows memory corruption via a crafted sketch | |
| Weaknesses | CWE-787 | |
| References |
|
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MITRE
Status: PUBLISHED
Assigner: apache
Published:
Updated: 2026-11-13T10:32:43.404Z
Reserved: 2026-11-05T18:41:24.720Z
Link: CVE-2026-123338
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
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