{"id":"CVE-2026-71852","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-71852","generatedAt":"2026-10-28T01:11:26.861Z","title":"pypdf is a free and open-source pure-python PDF library.","description":"pypdf is a free and open-source pure-python PDF library. Prior to 6.15.0, a crafted PDF can cause long runtimes and large memory consumption when pypdf/_font.py function Font._collect_cid_character_widths expands unusually large CID font /W width ranges or excessive width entries during text extraction. This issue is fixed in 6.15.0.","published":"2026-08-07T19:18:55.000Z","lastModified":"2026-10-24T15:10:00.000Z","status":"Analyzed","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"4.0","score":4.8,"severity":"MEDIUM","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-834"],"affected":["pypdf project/pypdf"],"epss":{"score":0.00125,"percentile":0.02215,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.13%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/py-pdf/pypdf/commit/51cb6acf9e8a35b77e90b4d87d28fe3e1416d7d7","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/py-pdf/pypdf/pull/3946","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/py-pdf/pypdf/releases/tag/6.15.0","tags":["Release Notes"],"source":"security-advisories@github.com"},{"url":"https://github.com/py-pdf/pypdf/security/advisories/GHSA-fwg2-594c-jp42","tags":["Patch","Vendor Advisory"],"source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-71852","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}