{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-84179", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2026-09-01T09:25:56.223Z", "datePublished": "2026-09-14T13:57:59.045Z", "dateUpdated": "2026-09-14T14:13:50.503Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-09-14T13:57:59.045Z"}, "title": "Apache Storm Nimbus, Apache Storm UI: Disclosure of Unredacted Merged Daemon Configuration via the Topology Page", "problemTypes": [{"descriptions": [{"description": "CWE-522: Insufficiently Protected Credentials", "lang": "en", "cweId": "CWE-522", "type": "CWE"}]}, {"descriptions": [{"description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor", "lang": "en", "cweId": "CWE-200", "type": "CWE"}]}], "source": {"discovery": "UNKNOWN"}, "affected": [{"vendor": "Apache Software Foundation", "product": "Apache Storm Nimbus", "collectionURL": "https://repo.maven.apache.org/maven2", "packageName": "org.apache.storm:storm-server", "versions": [{"status": "affected", "version": "3.0.0", "lessThan": "3.1.0", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Apache Software Foundation", "product": "Apache Storm UI", "collectionURL": "https://repo.maven.apache.org/maven2", "packageName": "org.apache.storm:storm-webapp", "versions": [{"status": "affected", "version": "3.0.0", "lessThan": "3.1.0", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"value": "Description\n\n getTopologyPageInfo merged the Nimbus daemon configuration with the topology's own configuration and returned the result without redaction in the topology_conf field of TopologyPageInfo. The Storm UI copied that value verbatim into the configuration field of GET /api/v1/topology/{id} and of the corresponding metrics endpoint.\n\n Where the cluster is configured with them, the merged map includes storm.zookeeper.auth.payload, which Storm's own documentation directs operators to keep in storm-cluster-auth.yaml under permissions that deny access from workers, together with the keystore and truststore passwords for the Thrift, Netty and ZooKeeper TLS configuration, and any plugin key whose name denotes a secret.\n\n getTopologyPageInfo is a topology read-only operation. Under SimpleACLAuthorizer a principal listed in topology.readonly.users or topology.readonly.groups could therefore read daemon credentials that the dedicated cluster configuration API, getNimbusConf, redacts and that is gated on nimbus.users instead. The sibling operations that exist to serve configuration were masked; the topology page, which merges in strictly more daemon state, was not.\n\n Mitigation\n\n Upgrade to 3.1.0, where credential-bearing values are masked before any configuration is served over the Nimbus API.\n\n Users who cannot upgrade immediately should remove any principal that is not trusted with cluster credentials from topology.readonly.users, topology.readonly.groups, topology.users and topology.groups, and should rotate the ZooKeeper authentication payload and any TLS keystore or truststore passwords that were reachable through the topology page.\n\n Credit\nWanxin Yin (yaklang.io)\u00a0reported this issue to the Apache Security Team.", "lang": "en", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<b>Description</b><br><br> getTopologyPageInfo merged the Nimbus daemon configuration with the topology's own configuration and returned the result without redaction in the topology_conf field of TopologyPageInfo. The Storm UI copied that value verbatim into the configuration field of GET /api/v1/topology/{id} and of the corresponding metrics endpoint.<br><br> Where the cluster is configured with them, the merged map includes storm.zookeeper.auth.payload, which Storm's own documentation directs operators to keep in storm-cluster-auth.yaml under permissions that deny access from workers, together with the keystore and truststore passwords for the Thrift, Netty and ZooKeeper TLS configuration, and any plugin key whose name denotes a secret.<br><br> getTopologyPageInfo is a topology read-only operation. Under SimpleACLAuthorizer a principal listed in topology.readonly.users or topology.readonly.groups could therefore read daemon credentials that the dedicated cluster configuration API, getNimbusConf, redacts and that is gated on nimbus.users instead. The sibling operations that exist to serve configuration were masked; the topology page, which merges in strictly more daemon state, was not.<br><br><b> Mitigation</b><br><br> Upgrade to 3.1.0, where credential-bearing values are masked before any configuration is served over the Nimbus API.<br><br> Users who cannot upgrade immediately should remove any principal that is not trusted with cluster credentials from topology.readonly.users, topology.readonly.groups, topology.users and topology.groups, and should rotate the ZooKeeper authentication payload and any TLS keystore or truststore passwords that were reachable through the topology page.<br><br><b> Credit</b><div><b><br></b><div><span>Wanxin Yin (yaklang.io)&nbsp;</span><span>reported this issue to the Apache Security Team.</span></div></div>"}]}], "references": [{"url": "https://lists.apache.org/thread/3pj6tf6xq8l6f661k3c20tqjnx6w5k55", "tags": ["vendor-advisory"]}], "metrics": [{"other": {"type": "Textual description of severity", "content": {"text": "important"}}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "credits": [{"lang": "en", "value": "Wanxin Yin (yaklang.io)", "type": "finder"}], "x_generator": {"engine": "Vulnogram 1.0.3"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/09/13/20"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-09-14T14:13:50.503Z"}}]}}

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