{"id":"CVE-2026-113789","published":"2026-10-21T16:17:26.603","lastModified":"2026-10-22T16:46:48.920","description":"pypdf is a free and open-source pure-python PDF library. Prior to 6.21.0, an attacker can craft a PDF that causes large memory usage or long runtimes when an application retrieves the document's form fields. This issue is fixed in version 6.21.0.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":["CWE-400","CWE-407"],"vendors":[],"products":[],"references":[{"url":"https://github.com/py-pdf/pypdf/commit/5ef728f0e16d225c853e89f861ba0a67402fe3f2","tags":[]},{"url":"https://github.com/py-pdf/pypdf/pull/4219","tags":[]},{"url":"https://github.com/py-pdf/pypdf/releases/tag/6.21.0","tags":[]},{"url":"https://github.com/py-pdf/pypdf/security/advisories/GHSA-6vvc-x485-93v7","tags":[]}],"exploitRefs":[{"url":"https://github.com/py-pdf/pypdf/commit/5ef728f0e16d225c853e89f861ba0a67402fe3f2","tags":[]},{"url":"https://github.com/py-pdf/pypdf/pull/4219","tags":[]},{"url":"https://github.com/py-pdf/pypdf/releases/tag/6.21.0","tags":[]},{"url":"https://github.com/py-pdf/pypdf/security/advisories/GHSA-6vvc-x485-93v7","tags":[]}],"hasPoc":true,"ai":null}