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Vulnerable Software

Vulnerability Details CVE-2026-112399

Pillow is a Python imaging library. From 8.1.0 until 13.0.0, Pillow can allocate an APNG disposal background at the full canvas size before applying the decompression-bomb check. A crafted APNG with a small first frame, a very large declared canvas, and background disposal or first-frame OP_PREVIOUS reaches PngImageFile._seek while Image.open() positions frame zero. The full-canvas allocation occurs inside Image.open() without requiring pixel loading or frame iteration. This can exhaust memory and deny service. This issue is fixed in version 13.0.0.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 32.5%
CVSS Severity
CVSS v3 Score 7.5
Products affected by CVE-2026-112399
  • Python » Pillow » Version: 10.0.0
    cpe:2.3:a:python:pillow:10.0.0
  • Python » Pillow » Version: 10.0.1
    cpe:2.3:a:python:pillow:10.0.1
  • Python » Pillow » Version: 10.1.0
    cpe:2.3:a:python:pillow:10.1.0
  • Python » Pillow » Version: 10.2.0
    cpe:2.3:a:python:pillow:10.2.0
  • Python » Pillow » Version: 10.3.0
    cpe:2.3:a:python:pillow:10.3.0
  • Python » Pillow » Version: 10.4.0
    cpe:2.3:a:python:pillow:10.4.0
  • Python » Pillow » Version: 11.0.0
    cpe:2.3:a:python:pillow:11.0.0
  • Python » Pillow » Version: 11.1.0
    cpe:2.3:a:python:pillow:11.1.0
  • Python » Pillow » Version: 11.2.1
    cpe:2.3:a:python:pillow:11.2.1
  • Python » Pillow » Version: 11.3.0
    cpe:2.3:a:python:pillow:11.3.0
  • Python » Pillow » Version: 12.0.0
    cpe:2.3:a:python:pillow:12.0.0
  • Python » Pillow » Version: 12.1.0
    cpe:2.3:a:python:pillow:12.1.0
  • Python » Pillow » Version: 12.1.1
    cpe:2.3:a:python:pillow:12.1.1
  • Python » Pillow » Version: 12.2.0
    cpe:2.3:a:python:pillow:12.2.0
  • Python » Pillow » Version: 8.1.0
    cpe:2.3:a:python:pillow:8.1.0
  • Python » Pillow » Version: 8.1.1
    cpe:2.3:a:python:pillow:8.1.1
  • Python » Pillow » Version: 8.1.2
    cpe:2.3:a:python:pillow:8.1.2
  • Python » Pillow » Version: 8.2.0
    cpe:2.3:a:python:pillow:8.2.0
  • Python » Pillow » Version: 8.3.0
    cpe:2.3:a:python:pillow:8.3.0
  • Python » Pillow » Version: 8.3.1
    cpe:2.3:a:python:pillow:8.3.1
  • Python » Pillow » Version: 8.3.2
    cpe:2.3:a:python:pillow:8.3.2
  • Python » Pillow » Version: 8.4.0
    cpe:2.3:a:python:pillow:8.4.0
  • Python » Pillow » Version: 9.0.0
    cpe:2.3:a:python:pillow:9.0.0
  • Python » Pillow » Version: 9.0.1
    cpe:2.3:a:python:pillow:9.0.1
  • Python » Pillow » Version: 9.1.0
    cpe:2.3:a:python:pillow:9.1.0
  • Python » Pillow » Version: 9.1.1
    cpe:2.3:a:python:pillow:9.1.1
  • Python » Pillow » Version: 9.2.0
    cpe:2.3:a:python:pillow:9.2.0
  • Python » Pillow » Version: 9.3.0
    cpe:2.3:a:python:pillow:9.3.0
  • Python » Pillow » Version: 9.4.0
    cpe:2.3:a:python:pillow:9.4.0
  • Python » Pillow » Version: 9.5.0
    cpe:2.3:a:python:pillow:9.5.0


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