Bug 2501496

Summary: CVE-2026-54058 python-pillow: Pillow: Memory disclosure or denial of service via crafted McIdas AREA image [epel-all]
Product: [Fedora] Fedora EPEL Reporter: Praise Ogwuche <pogwuche>
Component: python-pillowAssignee: Sandro Mani <manisandro>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: epel10CC: epel-packagers-sig, infra-sig, manisandro, python-packagers-sig
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["0b5afdbf-1633-464a-a059-b1f3df45b8d8"]}
Fixed In Version: Doc Type: ---
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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: 2500057    

Description Praise Ogwuche 2026-07-16 19:44:38 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.

Pillow is a Python imaging library. Prior to 12.3.0, when Pillow loads an uncompressed McIdas AREA image from a filename through the mmap raw codec path, attacker-controlled header words can set a row stride smaller than the natural row width, causing pixel access such as Image.tobytes(), getpixel, convert, or save to read beyond the mapped region and disclose adjacent process memory or fault. This issue is fixed in version 12.3.0.