Bug 2447885 (CVE-2026-32778)

Summary: CVE-2026-32778 libexpat: libexpat: Denial of Service via NULL pointer dereference after out-of-memory condition
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: crizzo, gtanzill, jbuscemi, jmitchel, kaycoth, kshier, rhel-process-autobot, stcannon, teagle, watson-tool-maintainers, yguenane
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in libexpat. This vulnerability allows an attacker to trigger a NULL pointer dereference in the `setContext` function. This occurs when the system attempts to retry an operation after an out-of-memory condition, which can lead to a Denial of Service (DoS) for the affected application.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-03-16 08:02:03 UTC
libexpat before 2.7.5 allows a NULL pointer dereference in the function setContext on retry after an earlier ouf-of-memory condition.