{"id":"CVE-2026-115580","published":"2026-10-23T20:17:21.087","lastModified":"2026-10-26T14:05:16.760","description":"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.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":["CWE-834"],"vendors":[],"products":[],"references":[{"url":"https://github.com/py-pdf/pypdf/commit/a3061e34b169d34478d520f5f049c53cfb1482b2","tags":[]},{"url":"https://github.com/py-pdf/pypdf/pull/4239","tags":[]},{"url":"https://github.com/py-pdf/pypdf/releases/tag/6.21.2","tags":[]},{"url":"https://github.com/py-pdf/pypdf/security/advisories/GHSA-gmh7-3g9r-mjh5","tags":[]}],"exploitRefs":[{"url":"https://github.com/py-pdf/pypdf/commit/a3061e34b169d34478d520f5f049c53cfb1482b2","tags":[]},{"url":"https://github.com/py-pdf/pypdf/pull/4239","tags":[]},{"url":"https://github.com/py-pdf/pypdf/releases/tag/6.21.2","tags":[]},{"url":"https://github.com/py-pdf/pypdf/security/advisories/GHSA-gmh7-3g9r-mjh5","tags":[]}],"hasPoc":true,"ai":null}