CVE-2021-39160: Code injection in nbgitpuller
First published: Wed Aug 25 2021(Updated: )
### Impact Due to an unsanitized input, visiting maliciously crafted links could result in arbitrary code execution in the user environment. ### Patches 0.10.2 ### Workarounds None, other than upgrade to 0.10.2 or downgrade to 0.8.x. ### For more information If you have any questions or comments about this advisory: * Open an issue in [nbgitpuller](https://github.com/jupyterhub/nbgitpuller/issues) * Email our security team at [security@ipython.org](mailto:security@ipython.org)
Credit: security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Jupyterhub Nbgitpuller | >=0.9.0<0.10.2 |
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Reference Links
- https://github.com/jupyterhub/nbgitpuller/security/advisories/GHSA-mq5p-2mcr-m52j
- https://nvd.nist.gov/vuln/detail/CVE-2021-39160
- https://github.com/jupyterhub/nbgitpuller/commit/07690644f29a566011dd0d7ba14cae3eb0490481
- https://github.com/jupyterhub/nbgitpuller/blob/main/CHANGELOG.md#0102---2021-08-25
- https://github.com/advisories/GHSA-mq5p-2mcr-m52j (Advisory)
- https://github.com/pypa/advisory-database/tree/main/vulns/nbgitpuller/PYSEC-2021-315.yaml
Frequently Asked Questions
What is CVE-2021-39160?
CVE-2021-39160 is a vulnerability in the nbgitpuller Jupyter server extension that allows for arbitrary code execution in the user environment when visiting maliciously crafted links.
What is the severity of CVE-2021-39160?
CVE-2021-39160 has a severity score of 8.8 (critical).
How does CVE-2021-39160 impact users?
CVE-2021-39160 allows for arbitrary code execution in the user environment when visiting malicious links.
How can I fix CVE-2021-39160?
To fix CVE-2021-39160, upgrade to version 0.10.2 of nbgitpuller or downgrade to version 0.8.x.
Are there any workarounds for CVE-2021-39160?
No, there are no workarounds for CVE-2021-39160 other than upgrading to version 0.10.2 or downgrading to version 0.8.x.
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