## pypdf: Possible long runtimes for repeated malformed cross-reference entries (Follow-up)

- 種別: advisory
- 重大度: high
- 関連技術: python
- CVE: CVE-2026-115585
- 公開日時: 2026-10-23T20:54:27.000Z
- 情報源: GitHub Advisory Database (https://github.com/advisories/GHSA-jr96-gvgh-j3r4)
- パーマリンク: https://vulnpulse.app/items/ghsa-ghsa-jr96-gvgh-j3r4

影響: pip:pypdf < 6.21.2 → 6.21.2
An attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with repeated malformed cross-reference streams. Patches This has been fixed in [pypdf==6.21.2](https://github.com/py-pdf/pypdf/releases/tag/6.21.2). Workarounds If you cannot upgrade yet, consider applying the changes from PR [#4240](https://github.com/py-pdf/pypdf/pull/4240). Notes This is a follow-up to https://github.com/py-pdf/pypdf/security/advisories/GHSA-55h5-xmcq-…