{"id":"BIT-pillow-2026-42310","summary":"Pillow: PDF Parsing Trailer Infinite Loop (DoS)","details":"Pillow is a Python imaging library. From version 4.2.0 to before version 12.2.0, an attacker can supply a malicious PDF that causes the process to hang indefinitely, consuming 100% CPU and making the application unresponsive. This issue has been patched in version 12.2.0.","aliases":["CVE-2026-42310","GHSA-r73j-pqj5-w3x7","PYSEC-2026-2874"],"modified":"2026-09-08T08:47:37.660452659Z","published":"2026-05-12T08:54:04.533Z","database_specific":{"cpes":["cpe:2.3:a:python:pillow:*:*:*:*:*:python:*:*"],"severity":"Medium"},"references":[{"type":"FIX","url":"https://github.com/python-pillow/Pillow/commit/3bf614e4b8615d0ce1d5039efaf6db447fe7c468"},{"type":"FIX","url":"https://github.com/python-pillow/Pillow/pull/9519"},{"type":"ARTICLE","url":"https://github.com/python-pillow/Pillow/releases/tag/12.2.0"},{"type":"ADVISORY","url":"https://github.com/python-pillow/Pillow/security/advisories/GHSA-r73j-pqj5-w3x7"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42310"}],"affected":[{"package":{"name":"pillow","ecosystem":"Bitnami","purl":"pkg:bitnami/pillow"},"ranges":[{"type":"SEMVER","events":[{"introduced":"4.2.0"},{"fixed":"12.2.0"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/pillow/BIT-pillow-2026-42310.json"},"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}],"schema_version":"1.9.0"}