CVE-2021-41134
In affected versions a stored cross-site scripting (XSS) issue exists within the Jupyter-owned nbdime project.
Does this matter?
Lower severity and a low EPSS score (0.70%). Track it; it rarely justifies an emergency change on its own.
Description
nbdime provides tools for diffing and merging of Jupyter Notebooks. In affected versions a stored cross-site scripting (XSS) issue exists within the Jupyter-owned nbdime project. It appears that when reading the file name and path from disk, the extension does not sanitize the string it constructs before returning it to be displayed. The diffNotebookCheckpoint function within nbdime causes this issue. When attempting to display the name of the local notebook (diffNotebookCheckpoint), nbdime appears to simply append .ipynb to the name of the input file. The NbdimeWidget is then created, and the base string is passed through to the request API function. From there, the frontend simply renders the HTML tag and anything along with it. Users are advised to patch to the most recent version of the affected product.
- CVSS 3.1
- 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.70% probability · 51th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- jupyter/nbdime · jupyter/nbdime-jupyterlab
- Source
- security-advisories@github.com
References
- https://github.com/jupyter/nbdime/commit/e44a5cc7677f24b45ebafc756db49058c2f750eaPatch, Third Party Advisory
- https://github.com/jupyter/nbdime/security/advisories/GHSA-p6rw-44q7-3fw4Third Party Advisory
- https://github.com/jupyter/nbdime/commit/e44a5cc7677f24b45ebafc756db49058c2f750eaPatch, Third Party Advisory
- https://github.com/jupyter/nbdime/security/advisories/GHSA-p6rw-44q7-3fw4Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.