CVE-2019-10255
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.
Does this matter?
Lower severity and a low EPSS score (1.76%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.0
- 6.1 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 1.76% probability · 78th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-601
- Affected
- jupyter/jupyterhub · jupyter/notebook
- Source
- cve@mitre.org
EPSS 1.8% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
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/
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.