{"cve":"CVE-2026-41168","nvd":{"published":"2026-04-22T21:17:09.450","modified":"2026-06-17T10:46:15.960","status":"Analyzed","description":"pypdf is a free and open-source pure-python PDF library. An attacker who uses a vulnerability present in versions prior to 6.10.1 can craft a PDF which leads to long runtimes. This requires cross-reference streams with wrong large `/Size` values or object streams with wrong large `/N` values. This has been fixed in pypdf 6.10.1. As a workaround, one may apply the changes from the patch manually.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","score":6.9},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":5.3},"cwes":["CWE-834"],"references":["https://github.com/py-pdf/pypdf/commit/62338e9d36419cf193ccec7331784f45df1d70b3","https://github.com/py-pdf/pypdf/pull/3733","https://github.com/py-pdf/pypdf/releases/tag/6.10.1","https://github.com/py-pdf/pypdf/security/advisories/GHSA-jj6c-8h6c-hppx"],"products":["pypdf_project:pypdf"],"source":"nvd","synced_at":"2026-10-19T22:33:09.003606135+00:00"},"epss":{"cve":"CVE-2026-41168","score":0.00297,"percentile":0.22388,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-jj6c-8h6c-hppx","url":"https://osv.dev/vulnerability/GHSA-jj6c-8h6c-hppx","summary":"pypdf has long runtimes for wrong size values in cross-reference and object streams","modified":"2026-09-10T03:50:44.569518277Z","packages":[{"ecosystem":"PyPI","name":"pypdf","purl":"pkg:pypi/pypdf","ranges":["<6.10.1"],"fixed":["6.10.1"]}]},{"id":"PYSEC-2026-3021","url":"https://osv.dev/vulnerability/PYSEC-2026-3021","summary":"pypdf has long runtimes for wrong size values in cross-reference and object streams","modified":"2026-07-13T16:33:05.744616577Z","packages":[{"ecosystem":"PyPI","name":"pypdf","purl":"pkg:pypi/pypdf","ranges":["<6.10.1"],"fixed":["6.10.1"]}]}],"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."]}