{"cve":"CVE-2026-33699","nvd":{"published":"2026-03-27T01:16:19.147","modified":"2026-06-17T10:37:56.713","status":"Analyzed","description":"pypdf is a free and open-source pure-python PDF library. Versions prior to 6.9.2 have a vulnerability in which an attacker can craft a PDF which leads to an infinite loop. This requires reading a file in non-strict mode. This has been fixed in pypdf 6.9.2. If users cannot upgrade yet, consider applying the changes from the patch manually.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U","score":4.6},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-835"],"references":["https://github.com/py-pdf/pypdf/pull/3693","https://github.com/py-pdf/pypdf/releases/tag/6.9.2","https://github.com/py-pdf/pypdf/security/advisories/GHSA-87mj-5ggw-8qc3"],"products":["pypdf_project:pypdf"],"source":"nvd","synced_at":"2026-10-19T22:28:18.033120106+00:00"},"epss":{"cve":"CVE-2026-33699","score":0.00472,"percentile":0.4086,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-87mj-5ggw-8qc3","url":"https://osv.dev/vulnerability/GHSA-87mj-5ggw-8qc3","summary":"pypdf: Possible infinite loop during recovery attempts in DictionaryObject.read_from_stream","modified":"2026-09-10T03:51:00.069856672Z","packages":[{"ecosystem":"PyPI","name":"pypdf","purl":"pkg:pypi/pypdf","ranges":["<6.9.2"],"fixed":["6.9.2"]}]},{"id":"PYSEC-2026-3012","url":"https://osv.dev/vulnerability/PYSEC-2026-3012","summary":"pypdf: Possible infinite loop during recovery attempts in DictionaryObject.read_from_stream","modified":"2026-07-13T16:33:09.017461435Z","packages":[{"ecosystem":"PyPI","name":"pypdf","purl":"pkg:pypi/pypdf","ranges":["<6.9.2"],"fixed":["6.9.2"]}]}],"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."]}