CVEvulnerability
CVE-2021-32662
6.5 MEDIUM
Official page ↗
- Status
- Undergoing Analysis
- Published
- 2021-06-03
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- CVSS 2.0 ([email protected])
- 3.5 LOW — AV:N/AC:M/Au:S/C:P/I:N/A:N
- Weaknesses
- CWE-22
Description
Backstage is an open platform for building developer portals, and techdocs-common contains common functionalities for Backstage's TechDocs. In `@backstage/techdocs-common` versions prior to 0.6.3, 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. The vulnerability is patched in the `0.6.3` release of `@backstage/techdocs-common`.
Affected configurations
• linuxfoundation backstage (< 0.6.3)
Related
Weakness · CWE (1)
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory weakness
References
- https://github.com/backstage/backstage/commit/8cefadca04cbf01d0394b0cb1983247e5f1d6208 Patch, Third Party Advisory
- https://github.com/backstage/backstage/releases/tag/release-2021-05-27 Release Notes, Third Party Advisory
- https://github.com/backstage/backstage/security/advisories/GHSA-pgf8-28gg-vpr6 Third Party Advisory
- https://github.com/backstage/backstage/commit/8cefadca04cbf01d0394b0cb1983247e5f1d6208 Patch, Third Party Advisory
- https://github.com/backstage/backstage/releases/tag/release-2021-05-27 Release Notes, Third Party Advisory
- https://github.com/backstage/backstage/security/advisories/GHSA-pgf8-28gg-vpr6 Third Party Advisory