{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "centrifugo",
          "vendor": "centrifugal",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 6.9.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Centrifugo is an open-source scalable real-time messaging server. Prior to 6.9.0, Centrifugo copies the client-controlled protocol.ConnectRequest.headers map through OnClientConnecting in internal/client/handler.go, ConnectEvent.Headers, and SetEmulatedHeadersToContext. The requestHeaders path in internal/proxy/http.go, the requestMetadata path in internal/proxy/grpc.go, and the Consume path in internal/unigrpc/grpc.go can forward an allowlisted value as a trusted backend header or metadata value. A remote client can spoof a header such as x-trusted-user for connect, refresh, subscribe, publish, RPC, and related proxy calls when the backend relies on that header for authentication or authorization. The unidirectional gRPC transport has no transport-level HTTP header that can override the emulated value. This issue is fixed in version 6.9.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-290",
              "description": "CWE-290: Authentication Bypass by Spoofing",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-20T21:01:00.931Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/centrifugal/centrifugo/security/advisories/GHSA-9468-v6mj-fppw",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/centrifugal/centrifugo/security/advisories/GHSA-9468-v6mj-fppw"
        },
        {
          "name": "https://github.com/centrifugal/centrifugo/pull/1182",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/centrifugal/centrifugo/pull/1182"
        },
        {
          "name": "https://github.com/centrifugal/centrifugo/commit/84d38cea1dd2efa24375a148817a974c8727f4b0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/centrifugal/centrifugo/commit/84d38cea1dd2efa24375a148817a974c8727f4b0"
        },
        {
          "name": "https://github.com/centrifugal/centrifugo/releases/tag/v6.9.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/centrifugal/centrifugo/releases/tag/v6.9.0"
        }
      ],
      "source": {
        "advisory": "GHSA-9468-v6mj-fppw",
        "discovery": "UNKNOWN"
      },
      "title": "Centrifugo: Client-forgeable headers emulation lets any client spoof headers forwarded to proxy backends"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-71485",
    "datePublished": "2026-08-20T21:01:00.931Z",
    "dateReserved": "2026-08-06T19:56:23.725Z",
    "dateUpdated": "2026-08-20T21:01:00.931Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-71485\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-08-20T21:17:08.707\",\"lastModified\":\"2026-08-20T21:17:08.707\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Centrifugo is an open-source scalable real-time messaging server. Prior to 6.9.0, Centrifugo copies the client-controlled protocol.ConnectRequest.headers map through OnClientConnecting in internal/client/handler.go, ConnectEvent.Headers, and SetEmulatedHeadersToContext. The requestHeaders path in internal/proxy/http.go, the requestMetadata path in internal/proxy/grpc.go, and the Consume path in internal/unigrpc/grpc.go can forward an allowlisted value as a trusted backend header or metadata value. A remote client can spoof a header such as x-trusted-user for connect, refresh, subscribe, publish, RPC, and related proxy calls when the backend relies on that header for authentication or authorization. The unidirectional gRPC transport has no transport-level HTTP header that can override the emulated value. This issue is fixed in version 6.9.0.\"}],\"affected\":[{\"source\":\"security-advisories@github.com\",\"affectedData\":[{\"vendor\":\"centrifugal\",\"product\":\"centrifugo\",\"versions\":[{\"version\":\"\u003c 6.9.0\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N\",\"baseScore\":9.1,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":5.2}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-290\"}]}],\"references\":[{\"url\":\"https://github.com/centrifugal/centrifugo/commit/84d38cea1dd2efa24375a148817a974c8727f4b0\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/centrifugal/centrifugo/pull/1182\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/centrifugal/centrifugo/releases/tag/v6.9.0\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/centrifugal/centrifugo/security/advisories/GHSA-9468-v6mj-fppw\",\"source\":\"security-advisories@github.com\"}]}}"
  }
}