CVE-2026-39378 - CERT CVE
ID CVE-2026-39378
Sažetak 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.
Reference
CVSS
Base: 6.5
Impact: 3.6
Exploitability:2.8
Pristup
VektorSloženostAutentikacija
NETWORK LOW NONE
Impact
PovjerljivostCjelovitostDostupnost
HIGH NONE NONE
CVSS vektor CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Zadnje važnije ažuriranje 21-04-2026 - 01:16
Objavljeno 21-04-2026 - 01:16