Description
Backstage is an open framework for building developer portals. Prior to 1.14.6 and 1.15.4, the @backstage/plugin-techdocs-node package did not sufficiently validate TechDocs Markdown extension configuration. An authenticated user who can register or modify documentation sources may cause a TechDocs build to access resources outside the intended documentation boundary, potentially exposing backend-host data or internal network resources. This issue is fixed in versions 1.14.6 and 1.15.4 when pymdown-extensions 10.21.3 or later is also used, normally through mkdocs-techdocs-core 1.7.0 or later.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
backstage backstage
< 1.50.5affected>= 1.51.0-next.0, < 1.54.6affected
@backstage plugin-techdocs-node
< 1.14.6affected>= 1.15.0, < 1.15.4affected
References
- https://github.com/backstage/backstage/security/advisories/GHSA-f7v3-xhm6-w245 ↗
- https://github.com/backstage/backstage/commit/017ace52d9b327ededc6704cf17799c875ae0f29 ↗
- https://github.com/backstage/backstage/commit/2d9de4ca117a529de4b6ed7dfb7aa507ca7b3f91 ↗
- https://github.com/backstage/backstage/releases/tag/v1.50.5 ↗
- https://github.com/backstage/backstage/releases/tag/v1.54.6 ↗