CVE-2021-25288: Fedoraproject Fedora

Critical severity, CVSS 9.1. EPSS: 2.4% chance of exploitation in the next 30 days.

An issue was discovered in Pillow before 8.2.0. There is an out-of-bounds read in J2kDecode, in j2ku_gray_i.

Affected products

• Fedoraproject Fedora: version 33 only
• Python Pillow: before 8.2.0 (fixed in 8.2.0)

Published 2021-06-02. Last modified 2026-06-17.