Search: CVE-2026-112391

A recursion depth check in the PdfParser.get_value() method of python-pillow's Pillow library is ineffective due to a default parameter value of -1 that never triggers the recursion limit guard. This allows crafted PDF files with deeply nested objects to cause a RecursionError when appending an image to an existing PDF using Image.save(..., format="PDF", append=True). The issue affects Pillow versions from 5.1.0 up to but not including 13.0.0 and is fixed in version 13.0.0.