PT-2025-33503 · Backstage · @Backstage/Plugin-Scaffolder-Backend

Benjdlambert · Published 2025-08-15 · Updated 2025-08-16 · CVE-2025-55285

Positive Technologies (AI Summary)

CVSS v3.1

2.6

Low

Base vector

AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions: @backstage/plugin-scaffolder-backend versions prior to 2.1.1

Description: The backend for the default Backstage software templates exhibited duplicate logging of input values in the fetch:template action within the Scaffolder. This resulted in improper redaction of secrets. The issue occurs when the variable ${{ secrets.x }} is passed to the fetch:template action.

Recommendations: Versions prior to 2.1.1 should be updated to version 2.1.1 or later. Template Authors can remove the use of ${{ secrets }} as an argument to fetch:template.

Exploit

Fix

Insertion into Log File

Weakness Enumeration

CWE-532

Related Identifiers

CVE-2025-55285

GHSA-3X3Q-GHCP-WHF7

Affected Products

@Backstage/Plugin-Scaffolder-Backend

References · 10

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/55xxx/CVE-2025-55285.json · Exploit
• https://osv.dev/vulnerability/GHSA-3x3q-ghcp-whf7 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-55285 · Security Note
• https://osv.dev/vulnerability/CVE-2025-55285 · Vendor Advisory
• https://github.com/backstage/backstage · Note
• https://github.com/backstage/backstage/security/advisories/GHSA-3x3q-ghcp-whf7 · Note
• https://github.com/backstage/backstage/commit/c371f6fe12371de31dca537510e6653e287cdc2e · Note
• https://twitter.com/VulmonFeeds/status/1956460932533452815 · Twitter Post
• https://twitter.com/CVEnew/status/1956654808020209880 · Twitter Post
• https://t.me/CVEtracker/30151 · Telegram Post