Global – October 27, 2026 -- Three critical vulnerabilities rated CVSS 9.2 in Pillow, the Python imaging library with an estimated 436 million monthly downloads, let a single crafted EPS, TIFF or JPEG file trigger command execution or heap corruption in any Python service that processes user-supplied images. Disclosed on 2026-10-19, all three flaws are fixed in Pillow 13.0.0.