CVE-2025-55285

@backstage/plugin-scaffolder-backend Template Secret Leakage in Logs in Scaffolder When Using `fetch:template`

Description

@backstage/plugin-scaffolder-backend is the backend for the default Backstage software templates. Prior to version 2.1.1, 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 ${{ secrets.x }} is not passed through to fetch:template there is no impact. This issue has been resolved in 2.1.1 of the scaffolder-backend plugin. A workaround for this issue involves Template Authors removing the use of ${{ secrets }} being used as an argument to fetch:template.

Category

2.6
CVSS
Severity: Low
CVSS 3.1 •
EPSS 0.03%
Affected: backstage backstage
Published at:
Updated at:

References

Link Tags
https://github.com/backstage/backstage/security/advisories/GHSA-3x3q-ghcp-whf7
https://github.com/backstage/backstage/commit/c371f6fe12371de31dca537510e6653e287cdc2e

Frequently Asked Questions

What is the severity of CVE-2025-55285?
CVE-2025-55285 has been scored as a low severity vulnerability.
How to fix CVE-2025-55285?
To fix CVE-2025-55285, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-55285 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-55285 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-55285?
CVE-2025-55285 affects backstage backstage.
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