GHSA-h53x-hjx6-25gr

Suggest an improvement
Source
https://github.com/advisories/GHSA-h53x-hjx6-25gr
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-h53x-hjx6-25gr/GHSA-h53x-hjx6-25gr.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-h53x-hjx6-25gr
Aliases
Published
2026-10-07T18:01:08Z
Modified
2026-10-07T18:15:12Z
Severity
  • 3.5 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N CVSS Calculator
Summary
Backstage: Unsupported catalog cluster authentication mode in kubernetes backend
Details

Impact

Deployments using catalog cluster discovery may be affected when catalog contributors can create or modify kubernetes-cluster Resource entities. With the required endpoint permissions and pod RBAC, the backend can use its local in-cluster identity, potentially exposing Kubernetes resources readable by that identity. The credential is used only with the local in-cluster API endpoint and is not sent to the catalog-supplied endpoint.

Patches

Patched in @backstage/plugin-kubernetes-backend version 0.21.10

Workarounds

  • Do not configure service account authentication through catalog-provided clusters; use the supported static configuration method when service account authentication is required.
  • Restrict catalog ingestion so untrusted users cannot create or alter Kubernetes cluster Resource entities.
Database specific 
{
    "cwe_ids": [
        "CWE-441"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-10-07T18:01:08Z",
    "nvd_published_at": "2026-10-06T21:17:17Z",
    "severity": "LOW"
}
References

Affected packages

npm / @backstage/plugin-kubernetes-backend

Package

Name
@backstage/plugin-kubernetes-backend
View open source insights on deps.dev
Purl
pkg:npm/%40backstage/plugin-kubernetes-backend

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.21.10

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-h53x-hjx6-25gr/GHSA-h53x-hjx6-25gr.json"