{
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          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Arc is an open, SQL-native time-series database for telemetry. From 26.02.1 until 26.06.2, Arc Enterprise clustering accepts cluster join requests without authentication when cluster.enabled is true but cluster.shared_secret is not configured. The defaults in internal/config/config.go set cluster.enabled to false, cluster.cluster_name to arc-cluster, cluster.coordinator_addr to :9100, cluster.shared_secret to an empty value, and cluster.tls_enabled to false, while cmd/arc/main.go requires cluster.shared_secret only when cluster.replication_enabled is true. JoinRequest in internal/cluster/protocol/messages.go accepts attacker-controlled node_id, role, raft_addr, api_addr, and coord_addr values, plus optional auth_nonce, auth_timestamp, and auth_hmac fields. The join path in internal/cluster/coordinator.go validates HMAC authentication only when the configured shared secret is non-empty and otherwise proceeds after only the cluster-name check. An accepted node is marked healthy, added as a Raft voter or registered locally, and becomes available through internal/cluster/registry.go to the routing logic in internal/cluster/router.go. The forwardRequest path in internal/cluster/router.go builds its target from node.APIAddress and copies Authorization and x-api-key headers with the request, so a rogue node selected for a forwarded query or write can receive authentication headers, request bodies, database and measurement names, and operational metadata. Heartbeat in internal/cluster/protocol/messages.go also lacks HMAC fields, and internal/cluster/coordinator.go updates node state from supplied node_id and state values without authentication. An unauthenticated network attacker who can reach the coordinator port and knows the cluster name can therefore become a trusted cluster node, mutate cluster membership, be submitted as a Raft voter, intercept topology-dependent forwarded requests, divert or forge operations, and blackhole or delay traffic. The default standalone configuration is not reachable because cluster.enabled is false, but Enterprise cluster deployments with clustering enabled and no shared secret are affected. This issue is fixed in version 26.06.2."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
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      ],
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          "descriptions": [
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              "cweId": "CWE-284",
              "description": "CWE-284: Improper Access Control",
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          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-287",
              "description": "CWE-287: Improper Authentication",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-306",
              "description": "CWE-306: Missing Authentication for Critical Function",
              "lang": "en",
              "type": "CWE"
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          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-28T20:32:23.103Z",
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          "name": "https://github.com/Basekick-Labs/arc/security/advisories/GHSA-p378-jp5r-gpgw",
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          ],
          "url": "https://github.com/Basekick-Labs/arc/security/advisories/GHSA-p378-jp5r-gpgw"
        },
        {
          "name": "https://github.com/Basekick-Labs/arc/pull/505",
          "tags": [
            "x_refsource_MISC"
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          "url": "https://github.com/Basekick-Labs/arc/pull/505"
        },
        {
          "name": "https://github.com/Basekick-Labs/arc/commit/38402ad2ebddd32c15bf4a0fc9c22c920e5685df",
          "tags": [
            "x_refsource_MISC"
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          "url": "https://github.com/Basekick-Labs/arc/commit/38402ad2ebddd32c15bf4a0fc9c22c920e5685df"
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        {
          "name": "https://github.com/Basekick-Labs/arc/releases/tag/v26.06.2",
          "tags": [
            "x_refsource_MISC"
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          "url": "https://github.com/Basekick-Labs/arc/releases/tag/v26.06.2"
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      ],
      "source": {
        "advisory": "GHSA-p378-jp5r-gpgw",
        "discovery": "UNKNOWN"
      },
      "title": "Arc: Unauthenticated cluster node admission when `cluster.shared_secret` is unset"
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  "cveMetadata": {
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                "id": "CVE-2026-48106",
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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          "vendor": "Basekick-Labs",
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Arc is an open, SQL-native time-series database for telemetry. Prior to version 26.06.1, Arc Enterprise\u0027s cluster replication receiver at `internal/cluster/replication/receiver.go` validates only the wire-format envelope (length, opcode) of inbound messages. The `MsgReplicateSync` payload itself is accepted without any application-layer authentication \u2014 no HMAC, no signature, no per-message nonce. The replication stream is protected at the transport layer by TLS / mTLS, but there is no protection against application-layer message tampering or replay once a peer is on the cluster network. This is fixed in 2026.06.1. Some workarounds are available. Restrict cluster network access to known-trusted peers via strict firewall rules, audit replication logs for unexpected `MsgReplicateSync` traffic, and/or disable cluster mode until the fix is available."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
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            "baseSeverity": "HIGH",
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              "cweId": "CWE-306",
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          ]
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        {
          "descriptions": [
            {
              "cweId": "CWE-345",
              "description": "CWE-345: Insufficient Verification of Data Authenticity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-924",
              "description": "CWE-924: Improper Enforcement of Message Integrity During Transmission in a Communication Channel",
              "lang": "en",
              "type": "CWE"
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          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-21T22:49:12.016Z",
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      "references": [
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          "name": "https://github.com/Basekick-Labs/arc/security/advisories/GHSA-wfgr-8x84-22q7",
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          ],
          "url": "https://github.com/Basekick-Labs/arc/security/advisories/GHSA-wfgr-8x84-22q7"
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      ],
      "source": {
        "advisory": "GHSA-wfgr-8x84-22q7",
        "discovery": "UNKNOWN"
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      "title": "Arc Enterprise cluster replication accepts unauthenticated MsgReplicateSync messages, enabling cluster-wide data injection from any TLS-trusted peer"
    }
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    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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              "content": {
                "id": "CVE-2026-48105",
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                  },
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                "role": "CISA Coordinator",
                "timestamp": "2026-08-24T18:44:53.970430Z",
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        "providerMetadata": {
          "dateUpdated": "2026-08-24T18:45:11.830Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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          "vendor": "Basekick-Labs",
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              "version": "\u003c 2026.06.1"
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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Arc is an open, SQL-native time-series database for telemetry. Prior to version 26.06.1, Arc Enterprise\u0027s Raft FSM (`internal/cluster/raft/fsm.go:applyRegisterFile`) accepts attacker-chosen file paths in manifest-registration proposals without validating them against the configured storage backend. The only check is that the path is non-empty. There is no parent-traversal (`..`) rejection, no allowlist of legitimate prefixes, no scheme restriction (`s3://` vs local), and no length bound. This is fixed in 2026.06.1. Some workarounds are available. Restrict cluster network access to known-trusted peers via strict firewall rules, audit the cluster manifest for unexpected paths (any path not matching the configured storage backend root is suspect), and/or disable cluster mode until the fix is available."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
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            "baseScore": 8.3,
            "baseSeverity": "HIGH",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "HIGH",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
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      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
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          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-345",
              "description": "CWE-345: Insufficient Verification of Data Authenticity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-913",
              "description": "CWE-913: Improper Control of Dynamically-Managed Code Resources",
              "lang": "en",
              "type": "CWE"
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          ]
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        "dateUpdated": "2026-08-21T22:47:13.993Z",
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          "name": "https://github.com/Basekick-Labs/arc/security/advisories/GHSA-f85q-mvg8-qf37",
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          ],
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      ],
      "source": {
        "advisory": "GHSA-f85q-mvg8-qf37",
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      "title": "Arc Enterprise cluster FSM applyRegisterFile accepts arbitrary file paths without validation, enabling cluster-wide path-traversal worm primitive"
    }
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                "id": "CVE-2026-47735",
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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      "descriptions": [
        {
          "lang": "en",
          "value": "Arc is an open, SQL-native time-series database for telemetry. Prior to version 26.06.1, Arc\u0027s user-SQL validator (`internal/api/query.go:ValidateSQLRequest`) blocked only `read_parquet(` and `arc_partition_agg(` via regex denylist. The broader DuckDB I/O function family \u2014 `read_csv_auto`, `read_csv`, `read_json`, `read_json_auto`, `read_text`, `read_blob`, `glob`, `parquet_metadata`, `parquet_schema`, `read_xlsx`, etc. \u2014 was not blocked. RBAC table-reference extraction inspected only `FROM`/`JOIN` clauses, so scalar table functions in the `SELECT` list slipped past both layers. This is fixed in 2026.06.1 via a structural sandbox at the DuckDB layer. After lockdown, DuckDB refuses to open any file outside the allowlist and refuses further `INSTALL`/`LOAD`. Already-loaded extensions remain callable. Some workarounds are available. Restrict API access to known-trusted networks via firewall rules or, as a temporary mitigation, add `read_csv*`/`read_json*`/`glob` etc. to `dangerousSQLPattern` in `internal/api/query.go`."
        }
      ],
      "metrics": [
        {
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          ]
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            {
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              "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-918",
              "description": "CWE-918: Server-Side Request Forgery (SSRF)",
              "lang": "en",
              "type": "CWE"
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-21T22:42:55.886Z",
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          "name": "https://github.com/Basekick-Labs/arc/pull/442",
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          "name": "https://github.com/Basekick-Labs/arc/commit/91bdc29d1a02178ccf8c66375eccf85203108dfb",
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          "url": "https://github.com/Basekick-Labs/arc/commit/91bdc29d1a02178ccf8c66375eccf85203108dfb"
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        {
          "name": "https://github.com/Basekick-Labs/arc/releases/tag/v26.06.1",
          "tags": [
            "x_refsource_MISC"
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          "url": "https://github.com/Basekick-Labs/arc/releases/tag/v26.06.1"
        }
      ],
      "source": {
        "advisory": "GHSA-p2j4-c4g6-rpf5",
        "discovery": "UNKNOWN"
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      "title": "Arc has an authenticated arbitrary local-file read via DuckDB I/O functions that bypasses RBAC table-level checks"
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        "providerMetadata": {
          "dateUpdated": "2026-08-25T16:44:36.584Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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          "vendor": "Basekick-Labs",
          "versions": [
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              "version": "\u003c 26.06.1"
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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Arc is an open, SQL-native time-series database for telemetry. Versions prior to 26.06.1 register Go\u0027s `net/http/pprof` handlers at `/debug/pprof/*` via `app.Use(pprof.New())` in `internal/api/server.go`, and `/debug/pprof` is added to `PublicPrefixes` in `cmd/arc/main.go`. The auth middleware short-circuits before the token check on prefix match, so the endpoints are reachable without any authentication. Version 26.06.1 contains a patch. Some workarounds are available. Block `/debug/pprof*` at a reverse proxy / load balancer in front of Arc, restrict Arc\u0027s API port to known-trusted networks via firewall rules, and/or patch the running build: comment out `app.Use(pprof.New())` in `internal/api/server.go` and rebuild."
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      ],
      "metrics": [
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            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-306",
              "description": "CWE-306: Missing Authentication for Critical Function",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-21T22:40:12.771Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/Basekick-Labs/arc/security/advisories/GHSA-j93g-rp6m-j32m",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/Basekick-Labs/arc/security/advisories/GHSA-j93g-rp6m-j32m"
        },
        {
          "name": "https://github.com/Basekick-Labs/arc/commit/32a4091fb949f9cf060cdd804a07f6450dc426a8",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Basekick-Labs/arc/commit/32a4091fb949f9cf060cdd804a07f6450dc426a8"
        },
        {
          "name": "https://github.com/Basekick-Labs/arc/releases/tag/v26.06.1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Basekick-Labs/arc/releases/tag/v26.06.1"
        }
      ],
      "source": {
        "advisory": "GHSA-j93g-rp6m-j32m",
        "discovery": "UNKNOWN"
      },
      "title": "Arc: Unauthenticated access to Go debug pprof endpoints leaks runtime state and enables CPU-burn DoS"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-48050",
    "datePublished": "2026-08-21T22:40:12.771Z",
    "dateReserved": "2026-05-20T18:15:53.578Z",
    "dateUpdated": "2026-08-25T16:44:36.584Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}