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TI-2026-39341 Aliases CVE-2026-54495GHSA-398h-7f66-3h4p

Cross-namespace FeatureFlagSource and InProcessConfiguration resolution exposes spec contents on multi-tenant clusters

Priority LOW 20CWE-668Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-668 and the CVSS impact.

Summary

The OpenFeature Operator allows users to expose feature flags to applications. In version 0.9.2 and earlier, a tenant who can create a controller-owned workload can use the openfeature.dev/featureflagsource annotation with NAMESPACE/NAME syntax to reference a FeatureFlagSource or InProcessConfiguration in another namespace. On multi-tenant clusters that use namespaces as trust boundaries, the cluster-scoped operator reads that resource and materializes spec.envVars literal values, spec.httpSyncBearerToken, sync URIs, and supporting ConfigMaps into the tenant's workload. Single-tenant clusters are not impacted, secretKeyRef and configMapKeyRef values remain namespace-local, and creating a FeatureFlagSource is not required.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00306 23rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
open-featureopen-feature-operatorup to 0.9.2—No fix listedCNA
—github.com/open-feature/open-feature-operator (Go)up to 0.9.2—No fix listedGHSA-398h-7f66-3h4p
  • open-feature-operator Vendoropen-feature Affected up to 0.9.2 Fixed in — No fix listed CNA
  • github.com/open-feature/open-feature-operator (Go) Vendor— Affected up to 0.9.2 Fixed in — No fix listed GHSA-398h-7f66-3h4p

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-54495
  2. 2026-10-03 Alias added: GHSA-398h-7f66-3h4p

References

Other 3

  • TI-2023-13479 OpenFeature Operator vulnerable to Cluster-level Privilege Escalation CVSS 3.1HIGH 8.8
  • TI-2026-24418 Allocation of Resources Without Limits or Throttling in flagd CVSS 3.1HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences