Information disclosure in @Backstage Plugin-Scaffolder-Backend
CVE-2026-32237
Backstage is an open framework for building developer portals. Prior to 3.1.5, authenticated users with permission to execute scaffolder dry-runs can gain access to server-configured environment secrets through the dry-run API response. Secrets are properly redacted in log output but not in all parts of the response payload. Deployments that have configured scaffolder.defaultEnvironment.secrets are affected. This is patched in @backstage/plugin-scaffolder-backend version 3.1.5.
Vulnerability class: Information Disclosure
EPSS: 0.002 (15.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N.
Affected products
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-32237?
- CVE-2026-32237 is a medium-severity vulnerability in @Backstage Plugin-Scaffolder-Backend, classified under Information Disclosure. CVSS score: 4.4/10. Published 2026-03-12.
- How severe is CVE-2026-32237?
- Medium severity. CVSS v3 base score is 4.4 out of 10.