HIGHpublic-safe

CVE-2026-106488

NVD: Backstage is an open framework for building developer portals. NVD: Prior to 0.4.20, the @backstage/plugin-auth-backend-module-oidc-provider package is affected by improper authentication in the oidc provider. NVD: 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.

CVSS
8.1 Severity
HIGH EPSS
0.0028 (19) KEV
-

Source-published summary

Possible impact

This high severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for high severity review.

Affected context

Affected product or version requires source confirmation.

Remediation / advisory

Patch confirmed by source text; fixed version context: 0.4.20..

Why it matters

This high severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for high severity review.; CVSS 8.1 (HIGH); EPSS percentile 19; not listed in KEV; Patch confirmed by source text; fixed version context: 0.4.20; sources: NVD, OSV.

What to verify

Confirm affected product/version, vendor advisory, patch or mitigation, and exposure.

Exposure hint

exposure unknown

Impact tags

明示タグなし

Urgency reasons

CVSS HIGHvendor advisory presentrecent updateremediation reference present

Source-derived note

Summary derived from NVD / OSV description; unsafe procedural detail is not shown.

Redaction metadata

source summary used: True
fallback summary used: False
unsafe procedural detail present: false
raw source displayed: false
public summary redacted: true

Remediation handoff

Public-safe static handoff for human/Codex remediation planning. Scan, patch, external execution, and auto remediation are disabled.

Handoff JSON Handoff Markdown Safe Codex prompt

Safety note

This radar shows source-published defensive context only. Exploit procedures, exploit strings, scanner commands, and auto-remediation are not provided.