CVE-2026-32237: medium-severity vulnerability in @backstage plugin-scaffolder-backend
@backstage/plugin-scaffolder-backend: Possible exposure of defaultEnvironment secrets using dry-run endpoint
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.4epss 0.3%
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.
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
Affected products
@backstage · plugin-scaffolder-backendRelated CVEs — @backstage plugin-scaffolder-backend
In the same product, most dangerous first.
CVE-2026-106503HIGHBackstage: Scaffolder action input authorization bypassEPSS 0.5%CVE-2026-106501CRITICALBackstage: Sensitive information exposure in ScaffolderEPSS 0.5%CVE-2026-106500HIGHBackstage: Improper task state validation in Scaffolder backendEPSS 0.3%CVE-2026-106502MEDIUMBackstage: Sensitive information may be exposed in Scaffolder task failure eventsEPSS 0.3%CVE-2026-106499MEDIUMBackstage: Secret-derived values may be exposed in scaffolder task logsEPSS 0.3%CVE-2026-106504MEDIUMBackstage: Sensitive information exposure in scaffolder task logsEPSS 0.3%