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 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.
References
| Link | Resource |
|---|---|
| https://github.com/backstage/backstage/commit/1b1f05e82161aaabc226c1d7d498d746956bf942 | Patch |
| https://github.com/backstage/backstage/releases/tag/v1.54.6 | Patch Release Notes |
| https://github.com/backstage/backstage/security/advisories/GHSA-826h-28h9-65hg | Mitigation Vendor Advisory |
Configurations
History
22 Oct 2026, 14:44
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/backstage/backstage/commit/1b1f05e82161aaabc226c1d7d498d746956bf942 - Patch | |
| References | () https://github.com/backstage/backstage/releases/tag/v1.54.6 - Patch, Release Notes | |
| References | () https://github.com/backstage/backstage/security/advisories/GHSA-826h-28h9-65hg - Mitigation, Vendor Advisory | |
| CPE | cpe:2.3:a:linuxfoundation:backstage\/plugin-auth-backend-module-oidc-provider:*:*:*:*:*:node.js:*:* cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:* |
|
| First Time |
Linuxfoundation backstage\/plugin-auth-backend-module-oidc-provider
Linuxfoundation Linuxfoundation backstage |
06 Oct 2026, 21:17
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-10-06 21:17
Updated : 2026-10-22 14:44
NVD link : CVE-2026-106488
Mitre link : CVE-2026-106488
CVE.ORG link : CVE-2026-106488
JSON object : View
Products Affected
linuxfoundation
- backstage
- backstage\/plugin-auth-backend-module-oidc-provider
CWE
CWE-287
Improper Authentication