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Backstage: Inconsistent repository filtering in Bitbucket Server catalog event updates

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-106458

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-106458

backstage

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

plugin-catalog-backend-module-bitbucket-server

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "backstage",
    "product": "backstage",
    "versions": [
      {
        "status": "affected",
        "version": ">= 1.38.0, < 1.55.0"
      }
    ]
  },
  {
    "vendor": "@backstage",
    "product": "plugin-catalog-backend-module-bitbucket-server",
    "versions": [
      {
        "status": "affected",
        "version": ">= 0.4.0, < 0.5.15"
      }
    ]
  }
]
Related CVEs
CVE-2026-106458

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#12010 · Revision 1
Added to Heist Feed
Publisher date
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