Code injection in nbgitpuller
Priority MEDIUM 45CWE-94Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-94.
Summary
nbgitpuller is a Jupyter server extension to sync a git repository one-way to a local path. Due to unsanitized input, visiting maliciously crafted links could result in arbitrary code execution in the user environment. This has been resolved in version 0.10.2 and all users are advised to upgrade. No work around exist for users who can not upgrade.
Why it matters now
EPSS 0.0173 77th percentileScored 2026-11-07
Fix Fixed nbgitpuller (jupyterhub): 0.10.2nbgitpuller (PyPI): 0.10.2
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 | nbgitpuller | 0.9.0 to before 0.10.2 | 0.10.2 | Patch available | CNA |
| — | nbgitpuller (PyPI) | 0.9.0 to before 0.10.2 | 0.10.2 | Patch available | GHSA-mq5p-2mcr-m52j |
- nbgitpuller Vendorjupyterhub Affected 0.9.0 to before 0.10.2 Fixed in 0.10.2 Patch available CNA
- nbgitpuller (PyPI) Vendor— Affected 0.9.0 to before 0.10.2 Fixed in 0.10.2 Patch available GHSA-mq5p-2mcr-m52j
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:jupyterhub:nbgitpuller:*:*:*:*:*:*:*:* | 0.9.0 to before 0.10.2 | Vulnerable | jupyterhub |
- cpe:2.3:a:jupyterhub:nbgitpuller:*:*:*:*:*:*:*:* Versions 0.9.0 to before 0.10.2 Vulnerable ·jupyterhub
Remediation
- Fix · CNA nbgitpuller (jupyterhub) Fixed in 0.10.2
- Fix · GHSA-mq5p-2mcr-m52j nbgitpuller (PyPI) Fixed in 0.10.2 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-39160
- 2026-10-03 Alias added: GHSA-mq5p-2mcr-m52j
References
Advisory 3
Sources
- CVE-2021-39160 · CVE Program
- CVE-2021-39160 · NVD
- FIRST EPSS
- GHSA-mq5p-2mcr-m52j · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences