Pillow is a Python imaging library. Prior to 12.3.0, Pillow's public rank-filter API can trigger a native heap out-of-bounds write when given a very large odd filter size because ImageFilter.RankFilter.filter() calls image.expand(size // 2, size // 2) before rank-filter size validation and ImagingExpand() computes output dimensions with unchecked signed int arithmetic. This issue is fixed in version 12.3.0.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade python3-pillow-develUpgrade python3-pillow-tkUpgrade python3-pillowUpgrade python3-pillow-doc | Aug 2, 2026 | Jul 29, 2026 |
| Amazon Linux Ami 2 | — | Upgrade python-pillow-tkUpgrade python-pillow-docUpgrade python-pillow-debuginfoUpgrade python-pillow-saneUpgrade python-pillow-develUpgrade python-pillow | Aug 5, 2026 | Aug 5, 2026 |
| Amazon_linux_2023 | — | Upgrade python3-pillow-tk-debuginfoUpgrade python3-pillow-develUpgrade python-pillow-debuginfoUpgrade python3-pillow-debuginfoUpgrade python-pillow-debugsourceUpgrade python3-pillowUpgrade python3-pillow-tk | Aug 10, 2026 | Jul 14, 2026 |
| Redhat_linux | — | Upgrade python3-pillow-develUpgrade python3-pillowUpgrade python3-pillow-tkUpgrade python3-pillow-tk-debuginfoUpgrade python3-pillow-debuginfoUpgrade python-pillow-debuginfoUpgrade python3-pillow-docUpgrade python-pillow-debugsource | Jul 20, 2026 | Jul 14, 2026 |
| Rocky_linux | — | Upgrade python3-pillow-develUpgrade python3-pillow-debuginfoUpgrade python-pillow-debugsourceUpgrade python3-pillow-tkUpgrade python-pillow-debuginfoUpgrade python3-pillowUpgrade python3-pillow-tk-debuginfo | Aug 3, 2026 | Jul 31, 2026 |
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