{"id":"CVE-2026-113790","aliases":[],"title":"pypdf: Possible large memory usage when parsing arrays and dictionaries","titleSource":"GitHub_M","descriptionSource":"GitHub_M","products":[{"vendor":"py-pdf","name":"pypdf","platforms":[],"versions":[{"version":"< 6.21.0","status":"affected"}],"source":"GitHub_M","url":"https://www.cve.org/CVERecord?id=CVE-2026-113790"}],"remediation":[],"description":"pypdf is a free and open-source pure-python PDF library. Prior to 6.21.0, an attacker can craft a PDF containing arrays or dictionaries with many elements, causing parsing to consume large amounts of memory. This issue is fixed in version 6.21.0.","severity":"medium","score":6,"published":"2026-10-21T15:35:52.503Z","modified":"2026-10-28T01:18:59.036Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://github.com/py-pdf/pypdf/security/advisories/GHSA-f54x-cmq8-qg57","https://github.com/py-pdf/pypdf/pull/4218","https://github.com/py-pdf/pypdf/commit/18bd2981a74479483a0b9507602c58a63d6c9b12","https://github.com/py-pdf/pypdf/releases/tag/6.21.0"],"sources":[{"name":"CVE","id":"CVE-2026-113790","modified":"2026-10-28T01:18:59.036Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-113790"}],"assessments":[{"source":"GitHub_M","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":6}],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-28T20:10:32.935Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}