CVE-2026-25732
NiceGUI's Path Traversal via Unsanitized FileUpload.name Enables Arbitrary File Write
描述
NiceGUI is a Python-based UI framework. Prior to 3.7.0, NiceGUI's FileUpload.name property exposes client-supplied filename metadata without sanitization, enabling path traversal when developers use the pattern UPLOAD_DIR / file.name. Malicious filenames containing ../ sequences allow attackers to write files outside intended directories, with potential for remote code execution through application file overwrites in vulnerable deployment patterns. This design creates a prevalent security footgun affecting applications following common community patterns. Note: Exploitation requires application code incorporating file.name into filesystem paths without sanitization. Applications using fixed paths, generated filenames, or explicit sanitization are not affected. This vulnerability is fixed in 3.7.0.
如何修補 CVE-2026-25732
要修補 CVE-2026-25732,請將受影響套件升級到下列已修補版本。
- —升級至 3.7.0 或更新版本
- —升級至 3.7.0 或更新版本
CVE-2026-25732 正在被利用嗎?
低 — EPSS 為 3.2%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 3.7.0
- from 0, < 3.7.0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |