Pillow versions before v10.0.1 bundled libwebp binaries in wheels that are vulnerable to CVE-2023-5129 (previously CVE-2023-4863). Pillow v10.0.1 upgrades the bundled libwebp binary to v1.3.2.
"https://github.com/pypa/advisory-database/blob/main/vulns/pillow/PYSEC-2023-175.yaml"