CVE-2026-112391: 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 provide a deeply nested PDF to an application that saves an image with PDF append enabled. Vendor/CNA’s CVSS 4.0 assessment (base score 6.3/10) rates confidentiality and integrity impact as none; availability impact as low.