Home/CVE/In jupyterhub-kubespawner before 0.12, certain usernames will be able to craft particular server names which will grant
CVE

CVE-2020-15110

In jupyterhub-kubespawner before 0.12, certain usernames will be able to craft particular server names which will grant

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.

MEDIUM · CVSS 6.8 EPSS 0.00219
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-863Incorrect Authorization
CWE-863Incorrect Authorization
▤

Affected Products & Versions

1
jupyterhub kubespawner< 0.12
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
PyPI jupyterhub-kubespawner HIGH fixed in 0.12.0
⚠

Public Exploits & PoCs

1
pocgithub.com · GHSA-v7m9-9497-p9grgithub.com
▣

Scoring & Timeline

6.8
MEDIUM · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD17 Jul 2020 · 09:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/jupyterhub/kubespawner/commit/3dfe870a7f5e98e2e398b01996ca6b8eff4bb1d0PatchThird Party Advisory
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