CVE-2026-122096

Apache DataSketches Java: Uncontrolled resource consumption when deserializing crafted sketch images

Published Nov 11, 2026 CVSS n/a EPSS < 1% KEV · Not listed
Description
Uncontrolled Resource Consumption vulnerability in the sketch deserialization of Apache DataSketches Java.



Several deserializers trusted sizes and counts declared in the serialized input. A small crafted input could make an application allocate an excessive amount of memory, leading to an OutOfMemoryError. A crafted string passed to FrequentLongsSketch.getInstance(String) could also make deserialization, or a later update, loop indefinitely. Only applications that deserialize sketches from untrusted sources are affected.



This issue affects Apache DataSketches Java: through 9.0.0.



Users are recommended to upgrade to version 9.1.0, which fixes the issue.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Apache Software Foundation
Apache Software Foundation apache Datasketches Java
Vendors & Products Apache Software Foundation
Apache Software Foundation apache Datasketches Java
Type Values Removed Values Added
Description Uncontrolled Resource Consumption vulnerability in the sketch deserialization of Apache DataSketches Java. Several deserializers trusted sizes and counts declared in the serialized input. A small crafted input could make an application allocate an excessive amount of memory, leading to an OutOfMemoryError. A crafted string passed to FrequentLongsSketch.getInstance(String) could also make deserialization, or a later update, loop indefinitely. Only applications that deserialize sketches from untrusted sources are affected. This issue affects Apache DataSketches Java: through 9.0.0. Users are recommended to upgrade to version 9.1.0, which fixes the issue.
Title Apache DataSketches Java: Uncontrolled resource consumption when deserializing crafted sketch images
Weaknesses CWE-400
CWE-789
CWE-835
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
apache
Published
Updated
Nov 13, 2026, 10:37 AM
Reserved
Nov 4, 2026, 5:30 PM
Status
Deferred
Published
Nov 11, 2026, 1:17 PM
Modified
Nov 12, 2026, 4:59 PM