cvedb.io
CVE-2026-42876
MEDIUM · CVSS 4.9
EPSS exploitation probability: 0%
Published 2026-05-11T20:25:44.307 · Last modified 2026-06-17T10:48:32.953

Summary

External Secrets Operator reads information from a third-party service and automatically injects the values as Kubernetes Secrets. Prior to 2.4.1, a user who only has permission to create ExternalSecret resources can cause the operator to create a Secret that Kubernetes will automatically populate with a long-lived token for the specified service account. This effectively allows the user to impersonate any service account in the namespace without needing direct create permissions on TokenRequest or Secrets of that type. This vulnerability is fixed in 2.4.1.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.