How severe is CVE-2024-28233?

CVE-2024-28233 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2024-28233 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-28233?

CVE-2024-28233 affects Jupyter Jupyterhub. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-28233?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-28233 have an EU (EUVD) identifier?

Yes. CVE-2024-28233 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0861.

When was CVE-2024-28233 published?

CVE-2024-28233 was published on 2024-03-27 and last updated on 2026-06-17.

CVE-2024-28233

CVE-2024-28233 is a high-severity vulnerability in Jupyter Jupyterhub with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-0861
Weakness: CWE-79
Affected product: Jupyter Jupyterhub
Published: 2024-03-27
Last modified: 2026-06-17

Description

JupyterHub is an open source multi-user server for Jupyter notebooks. By tricking a user into visiting a malicious subdomain, the attacker can achieve an XSS directly affecting the former's session. More precisely, in the context of JupyterHub, this XSS could achieve full access to JupyterHub API and user's single-user server. The affected configurations are single-origin JupyterHub deployments and JupyterHub deployments with user-controlled applications running on subdomains or peer subdomains of either the Hub or a single-user server. This vulnerability is fixed in 4.1.0.

Frequently asked questions

What is CVE-2024-28233?: JupyterHub is an open source multi-user server for Jupyter notebooks. By tricking a user into visiting a malicious subdomain, the attacker can achieve an XSS directly affecting the former's session. More precisely, in the context of JupyterHub, this XSS could achieve full access to JupyterHub API and user's single-user server. The affected configurations are single-origin JupyterHub deployments and JupyterHub deployments with user-controlled applications running on subdomains or peer subdomains of either the Hub or a single-user server. This vulnerability is fixed in 4.1.0.
How severe is CVE-2024-28233?: CVE-2024-28233 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2024-28233 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-28233?: CVE-2024-28233 affects Jupyter Jupyterhub. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-28233?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-28233 have an EU (EUVD) identifier?: Yes. CVE-2024-28233 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0861.
When was CVE-2024-28233 published?: CVE-2024-28233 was published on 2024-03-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:jupyter:jupyterhub:*:*:*:*:*:*:*:*

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Threat intelligence

Threat-intel indicators referencing this CVE:

146.190.112.200 (ipv4-addr)