CVE-2019-10856: jupyter notebook URL Redirection to Untrusted Site
Vulnerability summary
CVE-2019-10856 is a medium (CVSS 6.1) URL Redirection to Untrusted Site vulnerability in jupyter notebook. EPSS estimates a 1.26% chance of exploitation in the next 30 days, higher than 69.7% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 6.1, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 2 · Related 1Timeline
- 04-04-2019PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
5 scores · 3 sources · 3 versions- OSV · PypiEcosystem advisory · calculated6.1MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- OSV · UbuntuEcosystem advisory · calculated6.1MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS trend
Probability
1.26%
Chance of exploitation in the next 30 days
Percentile
70%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.26% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundExploit Reference (blog.jupyter.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Jupyter1 product
- notebook< 5.7.8
PyPI1 product
- notebook< 5.7.8
Ubuntu1 product
- jupyter-notebook< 5.2.2-1ubuntu0.1 | < 6.0.3-2ubuntu0.1 | < 6.4.8-1ubuntu0.1 | All versions (No fix recorded)
3 vendors · 3 products
References
10 links- blog.jupyter.org/open-redirect-vulnerability-in-jupyter-jupyterhub-adf43583f1e4X Refsource MISCExploitVendor AdvisoryWEBARTICLEREPORT
- github.com/jupyter/notebookPACKAGE