5.3
Medium
CVE-2026-106506 Backstage is an open framework for building developer portals
Description
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| backstage 1.54 | earliest → < 1.54.6 | 1.54.6 |
| plugin-scaffolder-backend 4.1 | earliest → < 4.1.0 | 4.1.0 |
References
- github.com github.com
- github.com github.com
- github.com github.com
Timeline
- Published
- Last modified
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