Bug 2541403

Summary: CVE-2026-97222 gnumeric: gnumeric: heap use-after-free when opening a malformed workbook [fedora-all]
Product: [Fedora] Fedora Reporter: Vladimir Vasilev <vvasilev>
Component: gnumericAssignee: Huzaifa S. Sidhpurwala <huzaifas>
Status: NEW --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: rawhideCC: alex.ploumistos, huzaifas, itsme_410, mwelinder
Target Milestone: ---Keywords: Security, SecurityTracking
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Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["995c7c47-5b53-4dc1-92e3-f8c3aa7b40b7"]}
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On:    
Bug Blocks: 2541397    

Description Vladimir Vasilev 2026-09-25 13:07:38 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

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.
Comment 1 M Welinder 2026-10-07 16:43:40 UTC 
Fix is https://gitlab.gnome.org/GNOME/gnumeric/-/commit/bc1dee29525933994181fb2307d6ad584de6040d