CVE-2026-27025
pypdf has possible long runtimes/large memory usage for large /ToUnicode streams
EPSS 0.17%
描述
pypdf is a free and open-source pure-python PDF library. Prior to 6.7.1, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes and large memory consumption. This requires parsing the /ToUnicode entry of a font with unusually large values, for example during text extraction. This vulnerability is fixed in 6.7.1.
如何修補 CVE-2026-27025
要修補 CVE-2026-27025,請將受影響套件升級到下列已修補版本。
- PyPI/pypdf—升級至 6.7.1 或更新版本
- PyPI/pypdf—升級至 6.7.1 或更新版本
CVE-2026-27025 正在被利用嗎?
低 — EPSS 為 0.2%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 6.7.1
- from 0, < 6.7.1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |