Jupyter Notebook open redirect vulnerability

MEDIUM 6.1CVE-2019-10856 · GHSA-rcx2-m7jp-p9wj · PYSEC-2019-158 · Published 04/04/2019 · updated 17/06/2026

In short

CVE-2019-10856 is a MEDIUM (CVSS 6.1) vulnerability affecting notebook, notebook (jupyter).
Chance of exploitation in the next 30 days (EPSS): 1.3%, higher than 69.7% of all vulnerabilities.
Fix: update to 5.7.8 or later.

Package	Affected versions	Patched versions
notebook PyPI	`< 5.7.8`	`5.7.8`
notebook jupyter	`< 5.7.8`	`5.7.8`

In Jupyter Notebook before 5.7.8, an open redirect can occur via an empty netloc. This issue exists because of an incomplete fix for CVE-2019-10255.

NVD description

In Jupyter Notebook before 5.7.8, an open redirect can occur via an empty netloc. This issue exists because of an incomplete fix for CVE-2019-10255.

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Package

Affected versions

Patched versions

PyPI

< 5.7.8

5.7.8

< 5.7.8

5.7.8

Description

In Jupyter Notebook before 5.7.8, an open redirect can occur via an empty netloc. This issue exists because of an incomplete fix for CVE-2019-10255.

NVD description

In Jupyter Notebook before 5.7.8, an open redirect can occur via an empty netloc. This issue exists because of an incomplete fix for CVE-2019-10255.

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