PYSEC-2026-1312
See a problem?- Import Source
- https://github.com/pypa/advisory-database/blob/main/vulns/dockerspawner/PYSEC-2026-1312.yaml
- JSON Data
- https://api.osv.dev/v1/vulns/PYSEC-2026-1312
- Aliases
- Published
- 2026-07-07T11:45:28.248139Z
- Modified
- 2026-07-07T17:46:38.918152675Z
- Severity
-
- 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
- Summary
- DockerSpawner allows any image by default
- Details
-
Impact
Users of JupyterHub deployments running DockerSpawner starting with 0.11.0 without specifying
DockerSpawner.allowed_imagesconfiguration allow users to launch any pullable image, instead of restricting to only the single configured image, as intended.Patches
Upgrade to DockerSpawner 13.
Workarounds
Explicitly setting
DockerSpawner.allowed_imagesto a non-empty list containing only the default image will result in the intended default behavior:c.DockerSpawner.image = "your-image" c.DockerSpawner.allowed_images = ["your-image"] - References
-
- https://github.com/jupyterhub/dockerspawner/security/advisories/GHSA-hfgr-h3vc-p6c2
- https://nvd.nist.gov/vuln/detail/CVE-2023-48311
- https://github.com/jupyterhub/dockerspawner/commit/3ba4b665b6ca6027ea7a032d7ca3eab977574626
- https://github.com/jupyterhub/dockerspawner
- https://pypi.org/project/dockerspawner
- https://github.com/advisories/GHSA-hfgr-h3vc-p6c2
Affected packages
PyPI / dockerspawner
Package
- Name
- dockerspawner
- View open source insights on deps.dev
- Purl
- pkg:pypi/dockerspawner