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@mend-on-mend mend-on-mend bot commented Dec 10, 2025

This PR contains the following updates:

Package Change Age Confidence
@backstage/plugin-scaffolder-backend (source) 2.1.0 -> 2.1.1 age confidence
@backstage/plugin-scaffolder-backend (source) 2.1.1 -> 2.2.0 age confidence
@backstage/plugin-scaffolder-backend (source) ^1.33.0 -> ^2.0.0 age confidence
@backstage/plugin-scaffolder-backend (source) ^1.31.0 -> ^2.0.0 age confidence

Template Secret leakage in logs in Scaffolder when using fetch:template

CVE-2025-55285 / GHSA-3x3q-ghcp-whf7

More information

Details

A logging flaw in Backstage Scaffolder’s fetch:template action up to @backstage/plugin-scaffolder-backend 2.1.0 may write template secrets to logs. The action emitted a duplicate, pre-redaction copy of input parameters, so values provided via the `` bag could appear in local/server logs when the action ran. Exploitation requires use of the secrets argument and access to Scaffolder/build logs; integrity and availability are unaffected.

  • Fix: upgrade to 2.1.1, which removes the duplicate log path and ensures secrets are redacted.
  • Mitigation: avoid passing `` to fetch:template if upgrade is not possible.

Open an issue in the Backstage repository

Visit our Discord, linked to in Backstage README

Severity

  • CVSS Score: 2.6 / 10 (Low)
  • Vector String: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:N/A:N

References

This data is provided by OSV and the GitHub Advisory Database (CC-BY 4.0).


Release Notes

backstage/backstage (@​backstage/plugin-scaffolder-backend)

v2.1.1

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Note

Upgrades Backstage packages (including @backstage/plugin-scaffolder-backend to 2.x) across multiple workspaces and refreshes yarn.lock with widespread dependency updates.

  • Backstage upgrades:
    • Bump @backstage/plugin-scaffolder-backend to ^2.x (e.g., in workspaces/tech-insights/packages/backend/package.json) and align related packages (backend-defaults ^0.12.x, backend-plugin-api 1.5.0, config 1.3.6, etc.).
    • Broad version updates for Backstage plugins and tooling (catalog, auth, permission, events, integration, scaffolder modules, catalog-node/common, cli-node/config-loader, etc.).
  • Lockfile refreshes:
    • Regenerate yarn.lock across workspaces (workspaces/rbac, report-portal, tekton, topology, etc.) reflecting updated Backstage deps and transitive packages.
  • Notable transitive changes:

Written by Cursor Bugbot for commit 1953714. This will update automatically on new commits. Configure here.

Signed-off-by: mend-on-mend[bot] <mend-on-mend[bot]@users.noreply.github.com>
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mend-on-mend bot commented Dec 10, 2025

Edited/Blocked Notification

Renovate will not automatically rebase this PR, because it does not recognize the last commit author and assumes somebody else may have edited the PR.

You can manually request rebase by checking the rebase/retry box above.

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