CVE-2026-39377
nbconvert has an Arbitrary File Write via Path Traversal in Cell Attachment Filenames
6.5
MEDIUM
CVSS 3.1
EPSS 0.27%
描述
The nbconvert tool, jupyter nbconvert, converts Jupyter notebooks to various other formats via Jinja templates. Versions 6.5 through 7.17.0 allow arbitrary file writes to locations outside the intended output directory when processing notebooks containing crafted cell attachment filenames. The `ExtractAttachmentsPreprocessor` passes attachment filenames directly to the filesystem without sanitization, enabling path traversal attacks. This vulnerability provides complete control over both the destination path and file extension. Version 7.17.1 contains a patch.
如何修補 CVE-2026-39377
要修補 CVE-2026-39377,請將受影響套件升級到下列已修補版本。
- —升級至 7.17.1 或更新版本
- —升級至 7.17.1 或更新版本
CVE-2026-39377 正在被利用嗎?
低 — EPSS 為 0.3%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- >= 6.5.0, < 7.17.1
- >= 6.5.0, < 7.17.1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N |