{"id":"CVE-2026-113793","aliases":["GHSA-9mx8-4j7g-633p"],"url":"https://o3.security/vulnerability/CVE-2026-113793","summary":"pypdf: Possible infinite loop when removing tree items","details":"### Impact\n\nAn attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires removing an object from a tree, for example an outline item.\n\n### Patches\n\nThis has been fixed in [pypdf==6.20.1](https://github.com/py-pdf/pypdf/releases/tag/6.20.1).\n\n### Workarounds\n\nIf you cannot upgrade yet, consider applying the changes from PR [#4188](https://github.com/py-pdf/pypdf/pull/4188).","published":"2026-10-21T15:57:55.600Z","modified":"2026-10-24T02:50:11.291693328Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"PyPI","name":"pypdf","fixedVersion":"6.20.1"}],"fix":{"url":"https://github.com/py-pdf/pypdf/commit/c9c35b4471c2eb5fe078094f6c816e69d4ed25a0","label":"py-pdf/pypdf@c9c35b4"},"references":[{"type":"WEB","url":"https://github.com/py-pdf/pypdf/releases/tag/6.20.1"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/113xxx/CVE-2026-113793.json"},{"type":"ADVISORY","url":"https://github.com/py-pdf/pypdf/security/advisories/GHSA-9mx8-4j7g-633p"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113793"},{"type":"FIX","url":"https://github.com/py-pdf/pypdf/commit/c9c35b4471c2eb5fe078094f6c816e69d4ed25a0"},{"type":"FIX","url":"https://github.com/py-pdf/pypdf/pull/4188"},{"type":"PACKAGE","url":"https://github.com/py-pdf/pypdf"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-24T02:50:11.291693328Z"}}