Disclosure summary
### Impact 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. ### Patches Patched in `@backstage/plugin-scaffolder-backend-module-confluence-to-markdown` version `0.3.25` ### Workarounds - Restrict execution of templates using the affected action to trusted users. - Remove or disable the affected action until the patched package is deployed.
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
GitHub Reviewed Security Advisories · GHSA-2cmg-v53w-8xfp
Open original source · Updated Oct 07, 2026
Backstage: Improper repository path validation in a Scaffolder backend module
Source severity: HIGH / 0
| Ecosystem | Package | Affected range | First patched |
|---|---|---|---|
| npm | @backstage/plugin-scaffolder-backend-module-confluence-to-markdown | < 0.3.25 | 0.3.25 |
Original records & references
- NIST NVD record
- CVE Program record
- github.com — Reviewed advisory
PUBLISHED 2026-10-07T14:02:59-04:00
MODIFIED 2026-10-07T14:03:00-04:00
INGESTED 2026-10-08T12:30:38-04:00