What is the CVSS score of CVE-2020-15110?

CVE-2020-15110 has a CVSS 3.1 base score of 8.1 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N. EPSS exploitation probability: 0.9%.

Is there a public PoC exploit available for CVE-2020-15110?

Yes, a public proof-of-concept exploit is available for CVE-2020-15110. Prioritise patching immediately. EPSS: 0.9%.

Is there a patch available for CVE-2020-15110?

Yes, a patch is available for CVE-2020-15110. Update the affected software to the latest version immediately.

Jupyterhub CVE-2020-15110

HIGH

Incorrect Authorization (CWE-863)

2020-07-17 security-advisories@github.com

Authentication Bypass Jupyterhub Kubespawner

8.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.1 HIGH

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

CVE Published

Jul 17, 2020 - 21:15 nvd

HIGH 8.1

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

1 pypi packages depend on jupyterhub-kubespawner (1 direct, 0 indirect)

Ecosystem-wide dependent count for version 0.12.0.

DescriptionNVD

AnalysisAI

In jupyterhub-kubespawner before 0.12, certain usernames will be able to craft particular server names which will grant them access to the default server of other users who have matching usernames. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified as Incorrect Authorization (CWE-863), which allows attackers to bypass authorization checks to access restricted resources. In jupyterhub-kubespawner before 0.12, certain usernames will be able to craft particular server names which will grant them access to the default server of other users who have matching usernames. This has been fixed in 0.12. Affected products include: Jupyterhub Kubespawner. Version information: before 0.12.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Review and test authorization logic, implement consistent access control checks, use centralized authorization framework.