CVE-2026-106501 - Backstage: Sensitive information exposure in Scaffolder
CVE ID :CVE-2026-106501
Published : Oct. 6, 2026, 10:17 p.m. | 1 hour, 28 minutes ago
Description :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.
Severity: 9.6 | CRITICAL
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Published : Oct. 6, 2026, 10:17 p.m. | 1 hour, 28 minutes ago
Description :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.
Severity: 9.6 | CRITICAL
Visit the link for more details, such as CVSS details, affected products, timeline, and more...