application that deserializes a KLL sketch from an untrusted source
can have heap memory corrupted by a crafted sketch, because the
serialized level boundaries were not validated.
This issue affects Apache DataSketches C++: 2.0.0 through 5.3.0.
Users are recommended to upgrade to version 5.3.1, which fixes the
issue.
Analysis and contextual insights are available on OpenCVE Cloud.
No solution or workaround provided in the CVE record.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Fri, 13 Nov 2026 11:30:00 +0000
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Fri, 13 Nov 2026 10:45:00 +0000
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| Description | Out-of-bounds Write vulnerability in Apache DataSketches C++. An application that deserializes a KLL sketch from an untrusted source can have heap memory corrupted by a crafted sketch, because the serialized level boundaries were not validated. This issue affects Apache DataSketches C++: 2.0.0 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 KLL sketch deserialization allows memory corruption via a crafted sketch | |
| Weaknesses | CWE-787 | |
| References |
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Subscriptions
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Status: PUBLISHED
Assigner: apache
Published:
Updated: 2026-11-13T11:07:40.219Z
Reserved: 2026-11-05T18:25:08.447Z
Link: CVE-2026-123274
No data.
Status : Received
Published: 2026-11-13T11:17:16.127
Modified: 2026-11-13T11:17:16.127
Link: CVE-2026-123274
No data.
OpenCVE Enrichment
No data.
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CWE-787
Out-of-bounds Write