CVE-2026-22690
pypdf has possible long runtimes for missing /Root object with large /Size values
EPSS 0.39%
描述
pypdf is a free and open-source pure-python PDF library. Prior to version 6.6.0, pypdf has possible long runtimes for missing /Root object with large /Size values. An attacker who uses this vulnerability can craft a PDF which leads to possibly long runtimes for actually invalid files. This can be achieved by omitting the /Root entry in the trailer, while using a rather large /Size value. Only the non-strict reading mode is affected. This issue has been patched in version 6.6.0.
如何修補 CVE-2026-22690
要修補 CVE-2026-22690,請將受影響套件升級到下列已修補版本。
- —升級至 6.6.0 或更新版本
- —升級至 6.6.0 或更新版本
CVE-2026-22690 正在被利用嗎?
低 — EPSS 為 0.4%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 6.6.0
- from 0, < 6.6.0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U |