{"id":"CVE-2026-71467","state":"PUBLISHED","title":"Acm-search-v2-api-rhel9: search-v2-api: authentication bypass on /federated via upgrade: websocket header spoofing","description":"A flaw was found in search-v2-api. The authentication middleware in the affected component unconditionally skips authentication when a request includes an `Upgrade: websocket` header. An unauthenticated attacker can exploit this by sending a specially crafted HTTP POST request to the `/federated` endpoint with the `Upgrade: websocket` header. This allows the attacker to bypass authentication and access federated search results across all configured remote managed hubs, leading to information disclosure.","publishedAt":"2026-08-11T19:22:05.408Z","updatedAt":"2026-08-26T21:39:19.363Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","source":"redhat"},"assigner":"redhat","products":["Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.17"],"affected":[{"vendor":"Red Hat","product":"Red Hat Advanced Cluster Management for Kubernetes 2.17","packageName":"rhacm2/acm-search-v2-api-rhel9","defaultStatus":"affected","versions":[{"version":"1787229541","status":"unaffected","lessThan":"*","versionType":"rpm"}],"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:acm:2.17::el9"]}],"references":["https://access.redhat.com/errata/RHSA-2026:60386","https://access.redhat.com/security/cve/CVE-2026-71467","https://bugzilla.redhat.com/show_bug.cgi?id=2512146"],"weaknesses":["CWE-287"],"ingestedAt":"2026-10-29T20:12:49.727Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/71xxx/CVE-2026-71467.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-71467","state":"PUBLISHED","datePublished":"2026-08-11T19:22:05.408Z","dateUpdated":"2026-08-26T21:39:19.363Z","assignerShortName":"redhat","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateReserved":"2026-08-06T19:34:07.969Z"},"containers":{"cna":{"title":"Acm-search-v2-api-rhel9: search-v2-api: authentication bypass on /federated via upgrade: websocket header spoofing","descriptions":[{"lang":"en","value":"A flaw was found in search-v2-api. The authentication middleware in the affected component unconditionally skips authentication when a request includes an `Upgrade: websocket` header. An unauthenticated attacker can exploit this by sending a specially crafted HTTP POST request to the `/federated` endpoint with the `Upgrade: websocket` header. This allows the attacker to bypass authentication and access federated search results across all configured remote managed hubs, leading to information disclosure."}],"affected":[{"vendor":"Red Hat","product":"Red Hat Advanced Cluster Management for Kubernetes 2.17","packageName":"rhacm2/acm-search-v2-api-rhel9","defaultStatus":"affected","versions":[{"version":"1787229541","status":"unaffected","lessThan":"*","versionType":"rpm"}],"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:acm:2.17::el9"]}],"references":[{"url":"https://access.redhat.com/errata/RHSA-2026:60386","name":"RHSA-2026:60386","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-71467","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2512146","name":"RHBZ#2512146","tags":["issue-tracking","x_refsource_REDHAT"]}],"metrics":[{"other":{"content":{"value":"Important","namespace":"https://access.redhat.com/security/updates/classification/"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"format":"CVSS"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-287","description":"Improper Authentication","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"redhat","orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateUpdated":"2026-08-26T21:39:19.363Z"},"datePublic":"2026-08-11T12:00:00.000Z","x_redhatCweChain":"CWE-287: Improper Authentication","workarounds":[{"lang":"en","value":"To mitigate this vulnerability, ensure the `FEATURE_FEDERATED_SEARCH` is disabled if not actively used. This feature is off by default in standard deployments of Red Hat Advanced Cluster Management for Kubernetes. For Global Hub deployments where `FEATURE_FEDERATED_SEARCH` is enabled by default, consider restricting network access to the `search-v2-api`'s `/federated` endpoint to trusted clients."}],"timeline":[{"lang":"en","time":"2026-08-06T00:00:00.000Z","value":"Reported to Red Hat."},{"lang":"en","time":"2026-08-11T12:00:00.000Z","value":"Made public."}],"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-11T20:08:15.749959Z","id":"CVE-2026-71467","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-11T20:08:51.599Z"}}]}}}