CVE-2026-40557
CVE-2026-40557: 1 tracked advisory record across Apache. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Apache
1 advisory- Advisory severityMedium4.8
Medium [CVE-2026-40557] Apache Storm Prometheus: Improper Certificate Validation
CVE-2026-40557Source published Source updated
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 option is…
- Affected products in this advisory
- Apache Storm Prometheus
- ZooKeeper
- Source-reported affected versions
- 2.6.3 through 2.8.6
- Source-reported fixed versions
- 2.8.7
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
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