What is CVE-2019-10856?

CVE-2019-10856 is a medium-severity vulnerability in Jupyter Notebook, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2019-04-04.

How severe is CVE-2019-10856?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2019-10856 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Open Redirect in Jupyter Notebook

CVE-2019-10856

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.

Vulnerability class: Open Redirect

EPSS: 0.013 (66.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Jupyter Notebook
N/a — versions n/a

Weakness classification (CWE)

CWE-601 — URL Redirection to Untrusted Site (Open Redirect)

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, x_refsource_MISC, Vendor Advisory)
cve@mitre.org (Patch, x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2019-10856?: CVE-2019-10856 is a medium-severity vulnerability in Jupyter Notebook, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2019-04-04.
How severe is CVE-2019-10856?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2019-10856 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.