{"id":"CVE-2026-113789","aliases":["GHSA-6vvc-x485-93v7"],"url":"https://o3.security/vulnerability/CVE-2026-113789","summary":"pypdf: Possible long runtimes/large memory usage when retrieving form fields","details":"### Impact\n\nAn attacker who uses this vulnerability can craft a PDF which leads to large memory usage and/or long runtimes. This requires retrieving the form fields of a document.\n\n### Patches\n\nThis has been fixed in [pypdf==6.21.0](https://github.com/py-pdf/pypdf/releases/tag/6.21.0).\n\n### Workarounds\n\nIf you cannot upgrade yet, consider applying the changes from PR [#4219](https://github.com/py-pdf/pypdf/pull/4219).","published":"2026-10-21T15:33:45.801Z","modified":"2026-10-22T02:49:06.837274764Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"PyPI","name":"pypdf","fixedVersion":"6.21.0"}],"fix":{"url":"https://github.com/py-pdf/pypdf/commit/5ef728f0e16d225c853e89f861ba0a67402fe3f2","label":"py-pdf/pypdf@5ef728f"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/113xxx/CVE-2026-113789.json"},{"type":"FIX","url":"https://github.com/py-pdf/pypdf/commit/5ef728f0e16d225c853e89f861ba0a67402fe3f2"},{"type":"FIX","url":"https://github.com/py-pdf/pypdf/pull/4219"},{"type":"WEB","url":"https://github.com/py-pdf/pypdf/releases/tag/6.21.0"},{"type":"ADVISORY","url":"https://github.com/py-pdf/pypdf/security/advisories/GHSA-6vvc-x485-93v7"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113789"},{"type":"PACKAGE","url":"https://github.com/py-pdf/pypdf"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-22T02:49:06.837274764Z"}}