CVE-2026-122096
Apache DataSketches Java: Uncontrolled resource consumption when deserializing crafted sketch images
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.
INFO
Published Date :
Nov. 11, 2026, 12:13 p.m.
Last Modified :
Nov. 11, 2026, 12:13 p.m.
Remotely Exploit :
No
Source :
apache
Affected Products
The following products are affected by CVE-2026-122096
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Upgrade Apache DataSketches Java to version 9.1.0.
- Avoid deserializing untrusted sketch sources.
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