CVE-2019-10255

Name: CVE-2019-10255
Creator: NVD / NIST
Published: 2019-03-28T16:29:00.567+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.74%

Last modified Jun 17, 2026

CVE-2019-10255 is a vulnerability of currently unknown severity. An Open Redirect vulnerability for all browsers in Jupyter Notebook before 5.7.7 and some browsers (Chrome, Firefox) in JupyterHub before 0.9.5 allows crafted links to the login page, which will redirect to a malicious site after successful login. Servers running on a base_url prefix are not affected.. EPSS estimates a 1.74% chance of exploitation in the next 30 days.

Description

An Open Redirect vulnerability for all browsers in Jupyter Notebook before 5.7.7 and some browsers (Chrome, Firefox) in JupyterHub before 0.9.5 allows crafted links to the login page, which will redirect to a malicious site after successful login. Servers running on a base_url prefix are not affected.

Metrics

EPSS Probability

1.74%

74.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-601

Affected Software

Vendor	Product	Versions
Jupyter	Jupyterhub	< 0.9.5
Jupyter	Notebook	< 5.7.7

References

https://blog.jupyter.org/open-redirect-vulnerability-in-jupyter-jupyterhub-adf43583f1e4Vendor Advisory
https://github.com/jupyter/notebook/commit/08c4c898182edbe97aadef1815cce50448f975cbPatch, Third Party Advisory
https://github.com/jupyter/notebook/commit/70fe9f0ddb3023162ece21fbb77d5564306b913bPatch, Third Party Advisory
https://github.com/jupyter/notebook/commit/d65328d4841892b412aef9015165db1eb029a8edPatch, Third Party Advisory
https://github.com/jupyter/notebook/compare/05aa4b2...16cf97cPatch, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UP5RLEES2JBBNSNLBR65XM6PCD4EMF7D/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VMDPJBVXOVO6LYGAT46VZNHH6JKSCURO/
https://blog.jupyter.org/open-redirect-vulnerability-in-jupyter-jupyterhub-adf43583f1e4Vendor Advisory
https://github.com/jupyter/notebook/commit/08c4c898182edbe97aadef1815cce50448f975cbPatch, Third Party Advisory
https://github.com/jupyter/notebook/commit/70fe9f0ddb3023162ece21fbb77d5564306b913bPatch, Third Party Advisory
https://github.com/jupyter/notebook/commit/d65328d4841892b412aef9015165db1eb029a8edPatch, Third Party Advisory
https://github.com/jupyter/notebook/compare/05aa4b2...16cf97cPatch, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UP5RLEES2JBBNSNLBR65XM6PCD4EMF7D/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VMDPJBVXOVO6LYGAT46VZNHH6JKSCURO/

Timeline

Published: Mar 28, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-10255?

How severe is CVE-2019-10255?

Severity scoring for CVE-2019-10255 is pending analysis. The EPSS model estimates a 1.74% probability of exploitation in the next 30 days.

How do I fix CVE-2019-10255?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-10255?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST