cvedb.io
CVE-2026-40557
MEDIUM · CVSS 4.8
EPSS exploitation probability: 0%
Published 2026-04-27T14:16:48.017 · Last modified 2026-06-17T10:45:26.793

Summary

Improper Certificate Validation via Global SSL Context Downgrade in Apache Storm Prometheus Reporter Versions Affected: from 2.6.3 to 2.8.6 Description:  In production deployments where an administrator enables storm.daemon.metrics.reporter.plugin.prometheus.skip_tls_validation (by default it is disabled) intending to affect only the Prometheus reporter, the undocumented global side effect creates an attack surface across every TLS-protected communication channel in the Storm daemon. The PrometheusPreparableReporter class implements an INSECURE_TRUST_MANAGER that accepts all SSL certificates without validation, with empty checkClientTrusted and checkServerTrusted methods. Most critically, when the storm.daemon.metrics.reporter.plugin.prometheus.skip_tls_validation configuration opti

Affected products

apache — storm_prometheus_reporter

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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.