Bug 2546685

Summary: CVE-2026-106063 gimp: GIMP: heap buffer overflow in DICOM export on oversized image dimensions [fedora-all]
Product: [Fedora] Fedora Reporter: Srikanth Balasubramanian <sbalasub>
Component: gimpAssignee: Nils Philippsen <nils>
Status: NEW --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: rawhideCC: jridky, nils, phracek, zdohnal
Target Milestone: ---Keywords: Security, SecurityTracking
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Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["5fb17ce9-a664-4eb5-9465-c12aec3b8311"]}
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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: 2546668    

Description Srikanth Balasubramanian 2026-10-06 16:49:00 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.

Finding 3. plug-ins/common/file-dicom.c, export_image() (~1649–1652). Wrapped width * height * bpp allocation; GEGL write exceeds buffer. SIGSEGV/ASan WRITE. Vector: export to DICOM on very large image (multi‑GB scale), not a small malicious download alone. CVSS tentative: AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H (6.3).