216.73.217.22

CVE-2026-39378

· Published 21/04/2026 01:16 · Modified 21/04/2026 16:20

Labels: CVE-2026-39378 2026-04-21CVE-2026-39378CWE-22[email protected]

Essential information

Published
21/04/2026 01:16
Modified
21/04/2026 16:20
Author
—
Creator
—
CVSS
6.5 MEDIUM (v3.1)
CISA KEV
No
CWE
—
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CVSS metrics

Description

The nbconvert tool, jupyter nbconvert, converts Jupyter notebooks to various other formats via Jinja templates. In versions 6.5 through 7.17.0, when `HTMLExporter.embed_images=True`, nbconvert's markdown renderer allows arbitrary file read via path traversal in image references. A malicious notebook can exfiltrate sensitive files from the conversion host by embedding them as base64 data URIs in the output HTML. nbconvert 7.17.1 contains a fix. As a workaround, do not enable `HTMLExporter.embed_images`; it is not enabled by default.

NVD status

Status
Undergoing Analysis — CVE has been recently published to the CVE List and has been received by the NVD.
Source
[email protected]
NVD
View on NVD

Affected products (CPE)

ProductCPE
jupyter / nbconvert cpe:2.3:a:jupyter:nbconvert:6.5:*:*:*:*:*:*:*
jupyter / nbconvert cpe:2.3:a:jupyter:nbconvert:7.0:*:*:*:*:*:*:*
jupyter / nbconvert cpe:2.3:a:jupyter:nbconvert:7.17.0:*:*:*:*:*:*:*

References