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https://issues.apache.org/jira/browse/SPARK-58877?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Cheng Pan resolved SPARK-58877.
-------------------------------
Fix Version/s: 5.0.0
Resolution: Fixed
Issue resolved by pull request 58127
[https://github.com/apache/spark/pull/58127]
> [BUILD] Upgrade Log4j from 2.26.0 to 2.26.1
> -------------------------------------------
>
> Key: SPARK-58877
> URL: https://issues.apache.org/jira/browse/SPARK-58877
> Project: Spark
> Issue Type: Improvement
> Components: Build
> Affects Versions: 5.0.0
> Reporter: Anoopam Sharma
> Priority: Minor
> Labels: pull-request-available
> Fix For: 5.0.0
>
>
> Upgrade Log4j from 2.26.0 to 2.26.1 to fix CVE-2026-49844.
>
> CVE-2026-49844 (MEDIUM 5.9): Improper encoding of non-finite floating-point
> values during MapMessage JSON serialization produces invalid JSON output.
>
> Fixed in Log4j 2.26.1 (released 2026-07-15).
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