Improper Certificate Validation Affecting org.apache.storm:storm-metrics-prometheus package, versions [2.6.3, 2.8.7)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-JAVA-ORGAPACHESTORM-16322971
- published30 Apr 2026
- disclosed27 Apr 2026
- creditK
Introduced: 27 Apr 2026
NewCVE-2026-40557 (opens in a new tab)How to fix?
Upgrade org.apache.storm:storm-metrics-prometheus to version 2.8.7 or higher.
Overview
org.apache.storm:storm-metrics-prometheus is a Distributed and fault-tolerant realtime computation
Affected versions of this package are vulnerable to Improper Certificate Validation in the INSECURE_CONNECTION_FACTORY calls. An attacker can intercept sensitive data and credentials by performing man-in-the-middle attacks on any TLS-protected connection within the affected process.
Note: This is only exploitable if the storm.daemon.metrics.reporter.plugin.prometheus.skip_tls_validation setting is enabled in the configuration.
Workaround
This vulnerability can be mitigated by removing the storm.daemon.metrics.reporter.plugin.prometheus.skip_tls_validation: true setting from the configuration and configuring a proper truststore containing the PushGateway's certificate.