CVSS v3
8.1
HIGH
EPSS Score
1.1 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
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.
Technical details
- Published
- 2020-07-17
Frequently asked questions
What is 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.
Is CVE-2020-15110 actively exploited?
Active exploitation of CVE-2020-15110 has not been confirmed. Its EPSS score was 1.1% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2020-15110?
CVE-2020-15110 has a CVSS v3 base score of 8.1 (HIGH severity).
Is CVE-2020-15110 affecting your environment?
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