{"id":"CVE-2026-113795","aliases":["GHSA-7mh2-4gg2-979f"],"url":"https://o3.security/vulnerability/CVE-2026-113795","summary":"pypdf: Possible large memory usage for streams with multiple filters","details":"### Impact\n\nAn attacker who uses this vulnerability can craft a PDF which leads to large memory consumption. This requires accessing any stream with a large amount of filters or multiple filters which pass around large amounts of data.\n\n### Patches\n\nThis has been fixed in [pypdf==6.20.0](https://github.com/py-pdf/pypdf/releases/tag/6.20.0).\n\n### Workarounds\n\nIf you cannot upgrade yet, consider applying the changes from PR [#4173](https://github.com/py-pdf/pypdf/pull/4173).","published":"2026-10-21T16:01:22.314Z","modified":"2026-10-24T02:48:46.211003582Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"PyPI","name":"pypdf","fixedVersion":"6.20.0"}],"fix":{"url":"https://github.com/py-pdf/pypdf/commit/80a84d4be6022d910874ccb0d2365400f3f0e185","label":"py-pdf/pypdf@80a84d4"},"references":[{"type":"WEB","url":"https://github.com/py-pdf/pypdf/releases/tag/6.20.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/113xxx/CVE-2026-113795.json"},{"type":"ADVISORY","url":"https://github.com/py-pdf/pypdf/security/advisories/GHSA-7mh2-4gg2-979f"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113795"},{"type":"FIX","url":"https://github.com/py-pdf/pypdf/commit/80a84d4be6022d910874ccb0d2365400f3f0e185"},{"type":"FIX","url":"https://github.com/py-pdf/pypdf/pull/4173"},{"type":"PACKAGE","url":"https://github.com/py-pdf/pypdf"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-24T02:48:46.211003582Z"}}