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CVE PROGRAM SOURCE RECORD6.5 Medium

CVE-2026-106458

Backstage: Inconsistent repository filtering in Bitbucket Server catalog event updates

Description

Backstage is an open framework for building developer portals. From 0.4.0 until 0.5.15, the @backstage/plugin-catalog-backend-module-bitbucket-server package is affected by inconsistent repository filtering in bitbucket server catalog event updates. Deployments using event-driven updates in the Bitbucket Server catalog provider may ingest catalog locations from repositories that are excluded by the provider's configured project, repository, or archived-repository filters. An authenticated Bitbucket Server user who can push to a filtered-out repository that remains readable by the configured Backstage integration can trigger a legitimate repository event. The affected event path may then add a Location for that repository even though scheduled discovery excludes it. This issue is fixed in version 0.5.15.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

backstage backstage

  • >= 1.38.0, < 1.55.0affected

@backstage plugin-catalog-backend-module-bitbucket-server

  • >= 0.4.0, < 0.5.15affected

References