{"id":"UBUNTU-CVE-2026-115580","details":"pypdf is a free and open-source pure-python PDF library. Prior to 6.21.2, an attacker can craft a PDF with a standard cross-reference table whose declared entry count exceeds what the file can contain, causing excessive processing and long runtimes when the file is opened. This issue is fixed in version 6.21.2.","modified":"2026-10-27T04:17:48.377226872Z","published":"2026-10-26T00:00:00Z","upstream":["CVE-2026-115580"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-115580"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-115580"},{"type":"REPORT","url":"https://github.com/py-pdf/pypdf/commit/a3061e34b169d34478d520f5f049c53cfb1482b2"},{"type":"REPORT","url":"https://github.com/py-pdf/pypdf/pull/4239"},{"type":"REPORT","url":"https://github.com/py-pdf/pypdf/releases/tag/6.21.2"},{"type":"REPORT","url":"https://github.com/py-pdf/pypdf/security/advisories/GHSA-gmh7-3g9r-mjh5"}],"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_name":"python3-pypdf","binary_version":"4.0.2-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115580.json"}},{"package":{"name":"pypdf","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/pypdf?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.9.2-1","6.9.2-2"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-pypdf","binary_version":"6.9.2-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115580.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_name":"python3-pypdf","binary_version":"6.9.2-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115580.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}