Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-106506

Backstage is an open framework for building developer portals. Prior to 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by improper input validation in scaffolder task list ordering. An authenticated Backstage user with permission to create and read relevant scaffolder tasks may be able to infer confidential task data under specific conditions. Successful exploitation requires retained task secrets, visibility of a target task, knowledge of the secret structure, and repeated requests. This issue is fixed in version 4.1.0.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 11.2%
CVSS Severity
CVSS v3 Score 5.3
Products affected by CVE-2026-106506


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