CVE-2021-32662

Description

### Impact A malicious actor could read sensitive files from the environment where TechDocs documentation is built and published by setting a particular path for `docs_dir` in `mkdocs.yml`. These files would then be available over the TechDocs backend API. This vulnerability is mitigated by the fact that an attacker would need access to modify the `mkdocs.yml` in the documentation source code, and would also need access to the TechDocs backend API. ### Patches The vulnerability is patched in the `0.6.3` release of `@backstage/techdocs-common`. ### For more information If you have any questions or comments about this advisory: * Open an issue in the [Backstage repository](https://github.com/backstage/backstage) * Visit our chat, linked to in [Backstage README](https://github.com/backstage/backstage)

How to fix CVE-2021-32662

To remediate CVE-2021-32662, upgrade the affected package to a fixed version below.

• —upgrade to 0.6.3 or later

Is CVE-2021-32662 being exploited?

Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.

Affected packages (1)

• from 0, < 0.6.3

CVSS scores

References (4)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2021-32662
• WEBgithub.com/backstage/backstage/commit/8cefadca04cbf01d0394b0cb1983247e5f1d6208
• WEBgithub.com/backstage/backstage/releases/tag/release-2021-05-27
• WEBgithub.com/backstage/backstage/security/advisories/GHSA-pgf8-28gg-vpr6