Bug 2571678 (CVE-2026-122096) - CVE-2026-122096 org.apache.datasketches/datasketches-java: datasketches-java: Denial of Service via untrusted input deserialization
Summary: CVE-2026-122096 org.apache.datasketches/datasketches-java: datasketches-java:...
Keywords:
Status: NEW
Alias: CVE-2026-122096
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-11 12:31 UTC by OSIDB Bzimport
Modified: 2026-11-11 12:38 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-11-11 12:31:26 UTC 
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.
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