{"cve":"CVE-2026-27628","nvd":{"published":"2026-02-25T03:16:06.513","modified":"2026-06-17T10:27:25.050","status":"Modified","description":"pypdf is a free and open-source pure-python PDF library. Prior to 6.7.2, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires reading the file. This has been fixed in pypdf 6.7.2. As a workaround, one may apply the patch manually.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U","score":1.2},"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/commit/f0a462d36971cf077d74492a348d0d06fd60ea4d","https://github.com/py-pdf/pypdf/issues/3654","https://github.com/py-pdf/pypdf/security/advisories/GHSA-2rw7-x74f-jg35","https://github.com/py-pdf/pypdf/issues/3654"],"products":["pypdf_project:pypdf"],"source":"nvd","synced_at":"2026-10-19T22:24:17.937441719+00:00"},"epss":{"cve":"CVE-2026-27628","score":0.00397,"percentile":0.33888,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-2rw7-x74f-jg35","url":"https://osv.dev/vulnerability/GHSA-2rw7-x74f-jg35","summary":"pypdf has a possible infinite loop when loading circular /Prev entries in cross-reference streams","modified":"2026-07-13T16:42:58.625591114Z","packages":[{"ecosystem":"PyPI","name":"pypdf","purl":"pkg:pypi/pypdf","ranges":["<6.7.2"],"fixed":["6.7.2"]}]},{"id":"PYSEC-2026-3005","url":"https://osv.dev/vulnerability/PYSEC-2026-3005","summary":"pypdf has a possible infinite loop when loading circular /Prev entries in cross-reference streams","modified":"2026-07-13T16:33:08.814408153Z","packages":[{"ecosystem":"PyPI","name":"pypdf","purl":"pkg:pypi/pypdf","ranges":["<6.7.2"],"fixed":["6.7.2"]}]}],"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."]}