## pypdf: Possible long runtimes/large memory usage when retrieving form fields

- 種別: advisory
- 重大度: medium
- 関連技術: python, github
- CVE: CVE-2026-113789
- 公開日時: 2026-10-22T16:49:56.000Z
- 情報源: GitHub Advisory Database (https://github.com/advisories/GHSA-6vvc-x485-93v7)
- パーマリンク: https://vulnpulse.app/items/ghsa-ghsa-6vvc-x485-93v7

影響: pip:pypdf < 6.21.0 → 6.21.0
An attacker who uses this vulnerability can craft a PDF which leads to large memory usage and/or long runtimes. This requires retrieving the form fields of a document. Patches This has been fixed in [pypdf==6.21.0](https://github.com/py-pdf/pypdf/releases/tag/6.21.0). Workarounds If you cannot upgrade yet, consider applying the changes from PR [#4219](https://github.com/py-pdf/pypdf/pull/4219).