{"id":"UBUNTU-CVE-2026-71852","details":"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.","modified":"2026-08-13T00:14:08Z","published":"2026-08-07T19:18:00Z","upstream":["CVE-2026-71852"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-71852"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-71852"},{"type":"REPORT","url":"https://github.com/py-pdf/pypdf/commit/51cb6acf9e8a35b77e90b4d87d28fe3e1416d7d7"},{"type":"REPORT","url":"https://github.com/py-pdf/pypdf/pull/3946"},{"type":"REPORT","url":"https://github.com/py-pdf/pypdf/releases/tag/6.15.0"},{"type":"REPORT","url":"https://github.com/py-pdf/pypdf/security/advisories/GHSA-fwg2-594c-jp42"}],"affected":[{"package":{"name":"pypdf","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/pypdf?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.4.1-1","3.17.4-1","4.0.0-1","4.0.1-1","4.0.2-1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.0.2-1","binary_name":"python3-pypdf"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71852.json"}},{"package":{"name":"pypdf","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/pypdf?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.4.0-1","6.9.2-1"],"ecosystem_specific":{"binaries":[{"binary_version":"6.9.2-1","binary_name":"python3-pypdf"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71852.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"},{"type":"Ubuntu","score":"medium"}]}