Vulnerabilities
Report: CVE-2026-39378 - nbconvert has an Arbitrary File Read via Path Traversal in HTMLExporter Image Em
CVE ID :CVE-2026-39378 Published : April 21, 2026, 1:16 a.m. | 59 minutes ago 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. Severity: 6.5 | MEDIUM Visit the link for more details, such as CVSS details, affected products, timeline, and more...