Bug 2541397 (CVE-2026-97222)

Summary: CVE-2026-97222 gnumeric: gnumeric: heap use-after-free when opening a malformed workbook
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
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Priority: medium    
Version: unspecifiedKeywords: Security
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OS: Linux   
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A heap use-after-free flaw was found in Gnumeric. When a user opens a crafted Gnumeric workbook containing a malformed SheetObjectComponent element, the XML parser can dereference a freed sheet-object component, causing Gnumeric to crash.
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Bug Depends On: 2541403    
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Description OSIDB Bzimport 2026-09-25 12:25:47 UTC 
A heap use-after-free flaw was found in Gnumeric's workbook XML parser. A malformed SheetObjectComponent element can cause the parser to release a sheet-object component and later pass the freed object to sheet_object_component_set_component(). When a user opens a crafted Gnumeric workbook, the stale object is dereferenced during XML parsing, causing Gnumeric to crash. The issue was reproduced in the 1.12.61 release and an AddressSanitizer-instrumented development build; it was also present in source reported as version 1.11.0 and later. The available proof of concept demonstrates a denial of service only. No code execution, information disclosure, or data-integrity impact has been demonstrated. A patch was available, but no fixed release had been identified at the time of reporting.