Bug 2540434 (CVE-2026-93545)

Summary: CVE-2026-93545 libXi: libXi: Denial of Service via out-of-bounds read in XListInputDevices()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in libXi. An out-of-bounds read vulnerability in the XListInputDevices() function allows a malicious X server to crash connected client applications. By returning specially crafted input device data when a client requests device information, the server can trigger an application crash, resulting in a Denial of Service (DoS).
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2540635    
Bug Blocks:    

Description OSIDB Bzimport 2026-09-24 16:47:26 UTC
An out-of-bounds read in libXi's XListInputDevices() in libXi before 1.8.4 could be used by malicious X servers to crash an attached X client.