CVE-2026-112406: Pillow >= 5.1.0, < 13.0.0

Affected technology

Pillow · >= 5.1.0, < 13.0.0
python-pillow

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · No privileges required · No user interaction required

What an attacker can do

An attacker can supply a cyclic PDF to an application that appends an image to that PDF. Vendor/CNA’s CVSS 4.0 assessment (base score 8.7/10) rates confidentiality and integrity impact as none; availability impact as high.