high7.1
CVE-2026-106560
Backstage: Improper repository path validation in a Scaffolder backend module
Impact
Backstage is an open framework for building developer portals. Prior to 0.3.25, the @backstage/plugin-scaffolder-backend-module-confluence-to-markdown package is affected by improper repository path validation in a scaffolder backend module. An authenticated user who can execute an affected template and control its repository file location may cause generated content to be written outside the task workspace, within locations writable by the Backstage backend process. This issue is fixed in version 0.3.25.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | @backstage/plugin-scaffolder-backend-module-confluence-to-markdown | < 0.3.25 | 0.3.25 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linuxfoundation | Backstage\/Plugin-Scaffolder-Backend-Module-Confluence-To-Markdown | before 0.3.25 |
| Linuxfoundation | Backstage | before 1.54.6 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-2cmg-v53w-8xfp
- https://github.com/backstage/backstage/security/advisories/GHSA-2cmg-v53w-8xfp
- https://nvd.nist.gov/vuln/detail/CVE-2026-106560
- https://github.com/backstage/backstage/commit/5f0000c1d0af05571e357926b3fa33a453337ff0
- https://github.com/backstage/backstage/releases/tag/v1.54.6