CVE-2025-55285: Template Secret leakage in logs in Scaffolder when using `fetch:template`

August 15, 2025

Duplicate logging of the input values in the fetch:template action in the Scaffolder meant that some of the secrets were not properly redacted. If you’re not passing through ${{ secrets.x }} to fetch:template there is no impact.

References

github.com/advisories/GHSA-3x3q-ghcp-whf7
github.com/backstage/backstage
github.com/backstage/backstage/commit/c371f6fe12371de31dca537510e6653e287cdc2e
github.com/backstage/backstage/security/advisories/GHSA-3x3q-ghcp-whf7
nvd.nist.gov/vuln/detail/CVE-2025-55285

Code Behaviors & Features

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