Bug 2565187 (CVE-2026-111959)

Summary: CVE-2026-111959 arrow: arrow: Out-of-bounds read via improper validation of RunEndEncoded arrays
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: jcantril, rojacob
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in arrow. Improper validation of RunEndEncoded (run-end encoded) arrays in the ArrayData interface allows an attacker to read data beyond the bounds of the child values array by supplying specially crafted data. This out-of-bounds read flaw may lead to information disclosure or a denial of service (DoS) from an application crash.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-11-02 13:43:19 UTC 
Out-of-bounds read vulnerability in Apache Arrow Rust (`arrow` crate), from version 33.0.0 through to versions 57.3.1, 58.4.0, 59.3.1 and 60.0.0.



Improper validation of RunEndEncoded arrays in the ArrayData interface can allow reading data beyond the bounds of the child values array.



Users are recommended to upgrade to versions 60.1.0, 59.3.2, 58.4.1, 57.3.2 which fixes the issue.