CVE-2026-59197 | BDVDB-2026-348487 Detail

Description#

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.

Impact#

Weaknesses#

References#

Exploit#

History#

1. Version 12026-07-14Record published in the CVE List.
2. Version 22026-07-21Most recent update recorded in the CVE List.