Backstage is an open framework for building developer portals. Prior to 0.4.20, the @backstage/plugin-auth-backend-module-oidc-provider package is affected by improper authentication in the oidc provider. Deployments using OIDC email-based …
Exact source revision recorded 25 Oct 2026 04:17:41 UTC. It does not establish the source's current position. Latest evidence.
nvd · CVE-2026-106488
PublishedBackstage is an open framework for building developer portals. Prior to 0.4.20, the @backstage/plugin-auth-backend-module-oidc-provider package is affected by improper authentication in the oidc provider. Deployments using OIDC email-based identity resolution with a provider that permits unverified email addresses may allow an authenticated provider user to assume another catalog identity. This may grant access and permissions associated with that user. No direct availability impact is demonstrated. This issue is fixed in version 0.4.20.
NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.
Source analysis status: Analyzed
Weakness classifications: CWE-287
Original publisher date fields
published: 2026-10-06T21:17:17.623
lastModified: 2026-10-22T14:44:06.520
2 source CPE criteria · context only
- cpe:2.3:a:linuxfoundation:backstage\/plugin-auth-backend-module-oidc-provider:*:*:*:*:*:node.js:*:*
- cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*
The original JSON retains the logical configuration operators, exclusions and version bounds.
- Source published
- 6 Oct 2026 21:17:17 UTC
- Source modified
- 22 Oct 2026 14:44:06 UTC
- Observed here
- 25 Oct 2026 04:17:41 UTC
- Source terms
- NIST NVD usage terms; underlying source attribution retained
Original source record · Cite this exact observation · Complete original publisher JSON
This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.
CVSS 3.1 · [email protected] · Secondary · 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N