{"cve":"CVE-2026-113786","nvd":{"published":"2026-10-21T15:17:16.703","modified":"2026-10-22T16:46:48.920","status":"Awaiting Analysis","description":"pypdf is a free and open-source pure-python PDF library. Prior to 6.21.1, an attacker can craft a PDF containing image data labeled with the /DCTDecode filter that causes Pillow to select and invoke an unintended image parser when the image is loaded. Environments without the optional Pillow dependency are not affected. This issue is fixed in version 6.21.1.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","score":2.3},"cvss_v3":null,"cwes":["CWE-20","CWE-183"],"references":["https://github.com/py-pdf/pypdf/commit/512d8eb94eb04be1d1c90504e6da2dcef8679e07","https://github.com/py-pdf/pypdf/pull/4222","https://github.com/py-pdf/pypdf/releases/tag/6.21.1","https://github.com/py-pdf/pypdf/security/advisories/GHSA-5hx5-vpf9-5wcv"],"products":[],"source":"nvd","synced_at":"2026-10-23T16:39:26.291718493+00:00"},"epss":{"cve":"CVE-2026-113786","score":0.00375,"percentile":0.31199,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-5hx5-vpf9-5wcv","url":"https://osv.dev/vulnerability/GHSA-5hx5-vpf9-5wcv","summary":"pypdf: Unvalidated JPEG image data loading","modified":"2026-10-21T20:15:04.178781594Z","packages":[{"ecosystem":"PyPI","name":"pypdf","purl":"pkg:pypi/pypdf","ranges":["<6.21.1"],"fixed":["6.21.1"]}]}],"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."]}