{"id":"CVE-2026-113793","revision":null,"records":[{"revision":"57c41bae6cc74e9eb5ec58cd088ddeaa","observedAt":"2026-10-28T17:46:48.824+00:00","statement":{"source":"cve-program","id":"CVE-2026-113793","aliases":[],"title":"pypdf: Possible infinite loop when removing tree items","description":"pypdf is a free and open-source pure-python PDF library. Prior to 6.20.1, removing an object from a crafted cyclic PDF tree, such as an outline item, can enter an infinite loop and block the current process. This issue is fixed in version 6.20.1.","state":0,"publishedAt":"2026-10-21T15:57:55.6+00:00","modifiedAt":"2026-10-28T17:01:30.87+00:00","affected":[{"ecosystem":"Vendor product","name":"pypdf","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"py-pdf\",\n                    \"product\": \"pypdf\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 6.20.1\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","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,"severity":"MEDIUM"}],"references":["https://github.com/py-pdf/pypdf/security/advisories/GHSA-9mx8-4j7g-633p","https://github.com/py-pdf/pypdf/pull/4188","https://github.com/py-pdf/pypdf/commit/c9c35b4471c2eb5fe078094f6c816e69d4ed25a0","https://github.com/py-pdf/pypdf/releases/tag/6.20.1"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-113793","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-113793","identifiers":["CVE-2026-113793"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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