Pillow: Out-of-bounds access in _imagingmorph on a zero-width image

影響: pip:Pillow <= 12.3.0 → 13.0.0

A PPM or PGM file can declare a width of 0, which Pillow accepts, producing an image of size (0, N). Passing that image to ImageMorph.MorphOp.apply() makes the native morphology code index a row buffer at outrow[width - 1], which is outrow[-1] when the width is 0. The process crashes. Details The PPM parser reads width and height with no lower-bound check: - src/PIL/PpmImagePlugin.py:119 The native apply() writes the row edges with no guard that the width is positive: - src/_imagingmorp…

在 GitHub Advisory Database 阅读

2026/10/21 05:56，GitHub Advisory Database 发布了“Pillow: Out-of-bounds access in _imagingmorph on a zero-width image”（类型：漏洞公告）。严重程度为“高危”（high）。相关技术：Python。CVE：CVE-2026-112397。