Bug 2547446 (CVE-2026-106064)

Summary: CVE-2026-106064 GIMP: GIMP: heap buffer overflow in GIF export on oversized image dimensions
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A heap-based buffer overflow was found in GIMP’s GIF export plug-in. Exporting an image with very large width and height can cause 32-bit overflow when computing the pixel buffer size. The plug-in allocates a buffer based on the wrapped value while GEGL writes using the true image extent, rooted in integer overflow
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2547447    
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Description OSIDB Bzimport 2026-10-07 14:02:45 UTC
Finding 4. plug-ins/common/file-gif-export.c, export_image() (~1053–1057). Same allocation vs GEGL extent mismatch. ASan WRITE. Vector: GIF export on oversized image. CVSS tentative: 6.3 (AC:H).