CVE-2026-106487
NVD: Backstage is an open framework for building developer portals. NVD: Prior to 0.21.10, the @backstage/plugin-kubernetes-backend package is affected by unsupported catalog cluster authentication mode in kubernetes backend. NVD: Deployments using catalog cluster discovery may be affected when catalog contributors can create or modify kubernetes-cluster Resource entities.
3.5 Severity
LOW EPSS
0.0026 (16) KEV
-
Source-published summary
NVD: Backstage is an open framework for building developer portals. NVD: Prior to 0.21.10, the @backstage/plugin-kubernetes-backend package is affected by unsupported catalog cluster authentication mode in kubernetes backend. NVD: Deployments using catalog cluster discovery may be affected when catalog contributors can create or modify kubernetes-cluster Resource entities.
Possible impact
This low severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for defensive exposure review.
Affected context
Affected product or version requires source confirmation.
Remediation / advisory
Patch confirmed by source text; fixed version context: 0.21.10..
Why it matters
This low severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for defensive exposure review.; CVSS 3.5 (LOW); EPSS percentile 16; not listed in KEV; Patch confirmed by source text; fixed version context: 0.21.10; sources: NVD, OSV.
What to verify
Confirm affected product/version, vendor advisory, patch or mitigation, and exposure.
Exposure hint
exposure unknown
Impact tags
Urgency reasons
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.
Safety note
This radar shows source-published defensive context only. Exploit procedures, exploit strings, scanner commands, and auto-remediation are not provided.