Vulnerabilities in pkg:maven/org.apache.storm/storm-metrics-prometheus

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-82fm-wpc2-5pmp",
  "modified" : "2026-05-05T22:05:03Z",
  "published" : "2026-04-27T15:30:52Z",
  "aliases" : [ "CVE-2026-40557" ],
  "summary" : "Apache Storm Prometheus Reporter vulnerable to Improper Certificate Validation via Global SSL Context Downgrade",
  "details" : "Improper Certificate Validation via Global SSL Context Downgrade in Apache Storm Prometheus Reporter\n\n\nVersions Affected: from 2.6.3 to 2.8.6\n\n\nDescription: \n\nIn 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.\n\n\nThe 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 enabled (default = disabled) for HTTPS Prometheus PushGateway connections, the INSECURE_CONNECTION_FACTORY calls SSLContext.setDefault(sslContext), which globally replaces the JVM's default SSL context rather than applying the insecure context only to the Prometheus connection. This payload flows through storm.yaml configuration → PrometheusPreparableReporter.prepare() → INSECURE_CONNECTION_FACTORY → SSLContext.setDefault(), resulting in a JVM-wide TLS security downgrade. All subsequent HTTPS connections in the process - including ZooKeeper, Thrift, Netty, and UI connections - silently trust all certificates, including self-signed, expired, and attacker-generated ones, enabling man-in-the-middle interception of cluster state, topology submissions, tuple data, and administrative credentials.\n\n\n\n\nMitigation: 2.x users should upgrade to 2.8.7 if the Prometheus Metrics Reporter is used. Prometheus Metrics Reporter Users who cannot upgrade immediately should remove the storm.daemon.metrics.reporter.plugin.prometheus.skip_tls_validation: true setting from their storm.yaml configuration and instead configure a proper truststore containing the PushGateway's certificate.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.storm:storm-metrics-prometheus"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.6.3"
      }, {
        "fixed" : "2.8.7"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-40557"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/apache/storm"
  }, {
    "type" : "WEB",
    "url" : "https://lists.apache.org/thread/f5bv68z1y5xstz22psjk05p3wn86knjq"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2026/04/25/2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-295" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-05-05T22:05:03Z",
    "nvd_published_at" : "2026-04-27T14:16:48Z"
  }
}