Possible pod name collisions in jupyterhub-kubespawner
Priority LOW 37CWE-863Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-863.
Summary
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.
Why it matters now
EPSS 0.01114 66th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed kubespawner (jupyterhub): 0.12jupyterhub-kubespawner (PyPI): 0.12.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| jupyterhub | kubespawner | before 0.12 | 0.12 | Patch available | CNA |
| — | jupyterhub-kubespawner (PyPI) | before 0.12.0 | 0.12.0 | Patch available | GHSA-v7m9-9497-p9gr |
- kubespawner Vendorjupyterhub Affected before 0.12 Fixed in 0.12 Patch available CNA
- jupyterhub-kubespawner (PyPI) Vendor— Affected before 0.12.0 Fixed in 0.12.0 Patch available GHSA-v7m9-9497-p9gr
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:jupyterhub:kubespawner:*:*:*:*:*:*:*:* | before 0.12 | Vulnerable | jupyterhub |
- cpe:2.3:a:jupyterhub:kubespawner:*:*:*:*:*:*:*:* Versions before 0.12 Vulnerable ·jupyterhub
Remediation
- Fix · CNA kubespawner (jupyterhub) Fixed in 0.12
- Fix · GHSA-v7m9-9497-p9gr jupyterhub-kubespawner (PyPI) Fixed in 0.12.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-15110
- 2026-10-03 Alias added: GHSA-v7m9-9497-p9gr
References
Sources
- CVE-2020-15110 · CVE Program
- CVE-2020-15110 · NVD
- FIRST EPSS
- GHSA-v7m9-9497-p9gr · GitHub Advisory Database · CC BY 4.0
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