High severity · published Aug 25, 2021
CVE-2021-39160
nbgitpuller is a Jupyter server extension to sync a git repository one-way to a local path
8.8
CVSS
1.7%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.7% · higher than 77% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NB
Nbgitpuller · Jupyterhub
0.9.0 before 0.10.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-39160
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-39160
Release Notes
https://github.com/jupyterhub/nbgitpuller/blob/main/CHANGELOG.md#0102---2021-08-25
Patch
https://github.com/jupyterhub/nbgitpuller/commit/07690644f29a566011dd0d7ba14cae3eb0490481
Third Party Advisory
https://github.com/jupyterhub/nbgitpuller/security/advisories/GHSA-mq5p-2mcr-m52j