CVE-2026-106463
Medium
Description
Backstage is an open framework for building developer portals. Prior to 0.8.7, the @backstage/plugin-catalog-backend-module-gitlab package is affected by improper authorization in gitlab organizational user ingestion. Deployments that enable GitLab organization event ingestion and rely on scoped catalog users as an access boundary may admit an unintended catalog identity. Depending on sign-in and permission configuration, this may allow unauthorized access with the permissions of a standard authenticated user. This issue is fixed in version 0.8.7.
SeverityMedium
CVSS5.4
Exploit probability—
Product
Linuxfoundation Backstage
PublishedOct 6, 2026
First seenOct 6, 2026
Weakness typeCWE-863Incorrect authorization
How to fix
Update
- linuxfoundation backstage1.54.6 or later
- linuxfoundation backstage\/plugin-catalog-backend-module-gitlab0.8.7 or later
- @backstage/plugin-catalog-backend-module-gitlab0.8.7 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linuxfoundation backstage | v < 1.54.6 | 1.54.6 |
| linuxfoundation backstage\/plugin-catalog-backend-module-gitlab | v < 0.8.7 | 0.8.7 |
| @backstage/plugin-catalog-backend-module-gitlabnpm | v < 0.8.7 | 0.8.7 |
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