Bug 2393877 (CVE-2025-40929)

Summary: CVE-2025-40929 Cpanel-JSON-XS: integer buffer overflow causing a segfault when parsing crafted JSON
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: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in the Cpanel-JSON-XS Perl module. A buffer overflow can be triggered due to an integer overflow when a specially crafted JSON input is processed, causing a segmentation fault, crashing the application using the module and resulting in a denial of service.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2393915, 2393916, 2393917    
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Description OSIDB Bzimport 2025-09-08 16:01:16 UTC
Cpanel::JSON::XS before version 4.40 for Perl has an integer buffer overflow causing a segfault when parsing crafted JSON, enabling denial-of-service attacks or other unspecified impact