{"cve":"CVE-2026-113794","nvd":{"published":"2026-10-21T16:17:28.707","modified":"2026-10-22T16:46:48.920","status":"Undergoing Analysis","description":"pypdf is a free and open-source pure-python PDF library. Prior to 6.20.0, an attacker can craft an incomplete PDF that ends inside a standard cross-reference table, causing pypdf to mishandle the unexpected end of file and enter an infinite loop. This issue is fixed in version 6.20.0.","cvss_v4":{"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":6.0},"cvss_v3":null,"cwes":["CWE-835"],"references":["https://github.com/py-pdf/pypdf/commit/37e1cd681744bac38b159f7e1c614eee8d639c58","https://github.com/py-pdf/pypdf/issues/4169","https://github.com/py-pdf/pypdf/pull/4170","https://github.com/py-pdf/pypdf/releases/tag/6.20.0","https://github.com/py-pdf/pypdf/security/advisories/GHSA-39mj-jf6j-2qj3"],"products":[],"source":"nvd","synced_at":"2026-10-23T16:39:26.291718493+00:00"},"epss":{"cve":"CVE-2026-113794","score":0.00466,"percentile":0.40056,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-39mj-jf6j-2qj3","url":"https://osv.dev/vulnerability/GHSA-39mj-jf6j-2qj3","summary":"pypdf: Possible infinite loop when hitting EOF in standard xref table","modified":"2026-10-21T17:00:26.618873039Z","packages":[{"ecosystem":"PyPI","name":"pypdf","purl":"pkg:pypi/pypdf","ranges":["<6.20.0"],"fixed":["6.20.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}