{"api_version":"1","generated_at":"2026-10-21T05:24:18+00:00","cve":"CVE-2026-105311","urls":{"html":"https://cve.report/CVE-2026-105311","api":"https://cve.report/api/cve/CVE-2026-105311.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-105311","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-105311"},"summary":{"title":"Console-operator: streams for apache kafka console: cross-namespace kafkauser secret exfiltration via confused deputy","description":"The StreamsHub Console operator acts as a confused deputy: a Kubernetes tenant with permission to create a Console custom resource can set spec.kafkaClusters[].credentials.kafkaUser.namespace to any namespace. The operator, running with cluster-wide Secrets RBAC, reads the victim-namespace KafkaUser Secret (SASL credentials or TLS private keys) and writes the plaintext material into a Secret in the attacker's namespace. No same-namespace check or allowlist exists anywhere in the code path.","state":"PUBLISHED","assigner":"redhat","published_at":"2026-10-20 12:17:28","updated_at":"2026-10-20 15:03:59"},"problem_types":["CWE-441","CWE-441 Unintended Proxy or Intermediary ('Confused Deputy')"],"metrics":[{"version":"3.1","source":"secalert@redhat.com","type":"Primary","score":"7.7","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","baseScore":7.7,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"7.7","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.7,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","version":"3.1"}}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2510875","name":"https://bugzilla.redhat.com/show_bug.cgi?id=2510875","refsource":"secalert@redhat.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://access.redhat.com/security/cve/CVE-2026-105311","name":"https://access.redhat.com/security/cve/CVE-2026-105311","refsource":"secalert@redhat.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-105311","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-105311","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Red Hat","product":"StreamsHub Console for Apache Kafka®","version":"affected 0.2.0 0.12.10 semver","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"StreamsHub Console for Apache Kafka®","version":"affected 0.13.0 0.14.2 semver","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"streams for Apache Kafka 2","version":"","platforms":[]},{"source":"CNA","vendor":"Red Hat","product":"streams for Apache Kafka 3","version":"","platforms":[]}],"timeline":[{"source":"CNA","time":"2026-08-04T03:10:18.848Z","lang":"en","value":"Reported to Red Hat."},{"source":"CNA","time":"2026-10-20T11:00:00.000Z","lang":"en","value":"Made public."}],"solutions":[],"workarounds":[{"source":"CNA","title":"","value":"1. Restrict Console CR RBAC — remove create/update verbs on consoles.console.streamshub.github.com from tenant-facing roles. Only trusted cluster administrators should manage Console CRs.\n2. Audit existing Console CRs — review all Console CRs for kafkaUser.namespace fields pointing outside the CR's own namespace.\n3. Network policy (defense-in-depth) — apply NetworkPolicy to restrict operator pod egress.","time":"","lang":"en"}],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"collectionURL":"https://github.com/streamshub/console","defaultStatus":"unaffected","packageName":"console","product":"StreamsHub Console for Apache Kafka®","vendor":"Red Hat","versions":[{"lessThan":"0.12.10","status":"affected","version":"0.2.0","versionType":"semver"},{"lessThan":"0.14.2","status":"affected","version":"0.13.0","versionType":"semver"}]},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:amq_streams:2"],"defaultStatus":"affected","packageName":"console-operator","product":"streams for Apache Kafka 2","vendor":"Red Hat"},{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:amq_streams:3"],"defaultStatus":"affected","packageName":"console-operator","product":"streams for Apache Kafka 3","vendor":"Red Hat"}],"datePublic":"2026-10-20T11:00:00.000Z","descriptions":[{"lang":"en","value":"The StreamsHub Console operator acts as a confused deputy: a Kubernetes tenant with permission to create a Console custom resource can set spec.kafkaClusters[].credentials.kafkaUser.namespace to any namespace. The operator, running with cluster-wide Secrets RBAC, reads the victim-namespace KafkaUser Secret (SASL credentials or TLS private keys) and writes the plaintext material into a Secret in the attacker's namespace. No same-namespace check or allowlist exists anywhere in the code path."}],"metrics":[{"other":{"content":{"namespace":"https://access.redhat.com/security/updates/classification/","value":"Important"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.7,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","version":"3.1"},"format":"CVSS"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-441","description":"Unintended Proxy or Intermediary ('Confused Deputy')","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-10-20T11:30:09.568Z","orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","shortName":"redhat"},"references":[{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-105311"},{"name":"RHBZ#2510875","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2510875"}],"timeline":[{"lang":"en","time":"2026-08-04T03:10:18.848Z","value":"Reported to Red Hat."},{"lang":"en","time":"2026-10-20T11:00:00.000Z","value":"Made public."}],"title":"Console-operator: streams for apache kafka console: cross-namespace kafkauser secret exfiltration via confused deputy","workarounds":[{"lang":"en","value":"1. Restrict Console CR RBAC — remove create/update verbs on consoles.console.streamshub.github.com from tenant-facing roles. Only trusted cluster administrators should manage Console CRs.\n2. Audit existing Console CRs — review all Console CRs for kafkaUser.namespace fields pointing outside the CR's own namespace.\n3. Network policy (defense-in-depth) — apply NetworkPolicy to restrict operator pod egress."}],"x_generator":{"engine":"cvelib 1.8.0"},"x_redhatCweChain":"CWE-441: Unintended Proxy or Intermediary ('Confused Deputy')"}},"cveMetadata":{"assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","assignerShortName":"redhat","cveId":"CVE-2026-105311","datePublished":"2026-10-20T11:30:09.568Z","dateReserved":"2026-10-05T07:03:59.012Z","dateUpdated":"2026-10-20T11:30:09.568Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-20 12:17:28","lastModifiedDate":"2026-10-20 15:03:59","problem_types":["CWE-441","CWE-441 Unintended Proxy or Intermediary ('Confused Deputy')"],"metrics":{"cvssMetricV31":[{"source":"secalert@redhat.com","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","baseScore":7.7,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":3.1,"impactScore":4}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"105311","Ordinal":"1","Title":"Console-operator: streams for apache kafka console: cross-namesp","CVE":"CVE-2026-105311","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"105311","Ordinal":"1","NoteData":"The StreamsHub Console operator acts as a confused deputy: a Kubernetes tenant with permission to create a Console custom resource can set spec.kafkaClusters[].credentials.kafkaUser.namespace to any namespace. The operator, running with cluster-wide Secrets RBAC, reads the victim-namespace KafkaUser Secret (SASL credentials or TLS private keys) and writes the plaintext material into a Secret in the attacker's namespace. No same-namespace check or allowlist exists anywhere in the code path.","Type":"Description","Title":"Console-operator: streams for apache kafka console: cross-namesp"}]}}}