{"schemaVersion":3,"id":"CVE-2025-66019","aliases":["GHSA-m449-cwjh-6pw7","PYSEC-2026-1832","UBUNTU-CVE-2025-66019","CGA-hcrw-v7mc-cj3v","CGA-xp7w-cvvw-fj8j","openSUSE-SU-2025:15776-1","CGA-m9p9-46mc-4fwh"],"status":"published","duplicateOf":null,"title":null,"description":"pypdf is a free and open-source pure-python PDF library. Prior to version 6.4.0, an attacker who uses this vulnerability can craft a PDF which leads to a memory usage of up to 1 GB per stream. This requires parsing the content stream of a page using the LZWDecode filter. 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