What is CVE-2020-15110?

CVE-2020-15110 is a medium-severity vulnerability in Jupyterhub Kubespawner, classified under Incorrect Authorization. CVSS score: 6.8/10. Published 2020-07-17.

How severe is CVE-2020-15110?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Auth bypass in Jupyterhub Kubespawner

CVE-2020-15110

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.

Vulnerability class: Broken Access Control

EPSS: 0.011 (62.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

Jupyterhub Kubespawner — versions < 0.12

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Third Party Advisory)
security-advisories@github.com (x_refsource_CONFIRM, Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2020-15110?: CVE-2020-15110 is a medium-severity vulnerability in Jupyterhub Kubespawner, classified under Incorrect Authorization. CVSS score: 6.8/10. Published 2020-07-17.
How severe is CVE-2020-15110?: Medium severity. CVSS v3 base score is 6.8 out of 10.