Bug 2558152

Summary: CVE-2026-112020 chafa: lodepng: Denial of Service via crafted interlaced PNG image [fedora-all]
Product: [Fedora] Fedora Reporter: Vladimir Vasilev <vvasilev>
Component: chafaAssignee: Filipe Rosset <rosset.filipe>
Status: NEW --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: rawhideCC: jonathan, rosset.filipe
Target Milestone: ---Keywords: Security, SecurityTracking
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Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["ac1d80d7-fa99-4179-bd99-4ebd026ff1ce"]}
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On:    
Bug Blocks: 2554756    

Description Vladimir Vasilev 2026-10-21 08:48:48 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.

LodePNG through 20261006 contains a heap out-of-bounds read vulnerability in lodepng::getFilterTypesInterlaced() in lodepng_util.cpp that lacks bounds checks on decompressed IDAT data. Attackers can supply a crafted interlaced PNG declaring a raster larger than its IDAT stream to disclose adjacent heap memory or crash applications.