pypdf: Possible long runtimes for large xref table header limits

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 opening a file with large/wrong upper limits in the xref table. 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 [#4239](https://github.com/py-pdf/pypdf/pull/4239).

GitHub Advisory Database에서 읽기

2026. 10. 24. 오전 05:54, GitHub Advisory Database에서 "pypdf: Possible long runtimes for large xref table header limits"을(를) 게시했습니다 (유형: 취약점 권고). 심각도는 "높음"(high)입니다. 관련 기술: Python. CVE: CVE-2026-115580.