CVE-2026-106504Medium· 6.5▾ SunlitBackstage is an open framework for building developer portals. Prior to 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by sensitive information exposure in scaffolder task logs. An authenticated user who can create a…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 35.8 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Oct 7.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.3%
Last analysed / modified upstream
0.3% → 0.3%
Backstage is an open framework for building developer portals. Prior to 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by sensitive information exposure in scaffolder task logs. An authenticated user who can create and read scaffolder tasks may be able to observe sensitive values in task logs in deployments with restrictive action permissions and affected templates. Exploitation requires a denied action whose input contains such a value. This issue is fixed in version 4.1.0.
backstage/plugin-scaffolder-backend < 4.1.0backstage < 1.54.6Upgrade past the affected range:
backstage/plugin-scaffolder-backend 4.1.0backstage 1.54.6Affected packages:
@backstage/plugin-scaffolder-backend < 4.1.0Patched in:
@backstage/plugin-scaffolder-backend 4.1.0Connected by shared product, vendor, weakness, or advisory.
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