CVE-2021-25742: Improper Input Validation

October 29, 2021 (updated December 15, 2021)

A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use the custom snippets feature to obtain all secrets in the cluster.

References

github.com/kubernetes/ingress-nginx/issues/7837
groups.google.com/g/kubernetes-security-announce/c/mT4JJxi9tQY
nvd.nist.gov/vuln/detail/CVE-2021-25742

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