CVE-2026-122096
Apache DataSketches Java: Uncontrolled resource consumption when deserializing crafted sketch images
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.
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: apacheFix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: apacheAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| Apache DataSketches Java Apache Software Foundation org.apache.datasketches:datasketches-java
maven |
≥ 0; ≤ 9.0.0 (affected, semver)
Other versions: unaffected |
CNA: apache |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
No CVSS assessment reported. An unscored record is not a low-severity determination.
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://github.com/apache/datasketches-java/releases/tag/9.1.0CNA: apache · release-notes
- https://github.com/apache/datasketches-java/pull/777CNA: apache · patch
- https://github.com/apache/datasketches-java/pull/783CNA: apache · patch
- https://lists.apache.org/thread/9wd7ngmho7hm8x74sq1p2fp1xgjd8kt6CNA: apache · vendor-advisory
- http://www.openwall.com/lists/oss-security/2026/11/10/29ADP: CVE
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