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HIGH

CVE-2020-15110

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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