Dashboard / CVE-2026-106488

CVE-2026-106488

HIGH
MEDIUM Priority: 0.02 BB Relevance: 66/100
Published: 2026-10-06 Modified: 2026-10-22 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: Unchanged
C: High
I: High
A: None

Description

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.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
linuxfoundation backstage < 1.54.6
linuxfoundation backstage\/plugin-auth-backend-module-oidc-provider < 0.4.20

References & Advisories (3)

Bug Bounty Relevance

66 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

8.1 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

EPSS — Exploitation Probability

0.28%
Raw Score 0.002800
Percentile 20.5%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00280
2026-10-28
0.00280

Intelligence Sources

nvd ref →

External Links