Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-106501

Backstage is an open framework for building developer portals. Prior to 3.3.1, 3.4.1, 4.0.3 and 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by sensitive information exposure in scaffolder. An authenticated Backstage user who can read another user's Scaffolder task may receive internal execution data. In deployments where that data contains credentials for an external service, this may permit disclosure and unauthorized changes in that external service. This issue is fixed in versions 3.3.1, 3.4.1, 4.0.3 and 4.1.0.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 39.1%
CVSS Severity
CVSS v3 Score 9.6
Products affected by CVE-2026-106501


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