{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "source": "REFERENCES"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "91bdc29d1a02178ccf8c66375eccf85203108dfb"
            },
            {
              "fixed": "8038f6f80f77bb48dbaa220e7415957be3988eff"
            }
          ],
          "repo": "https://github.com/basekick-labs/arc",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-p2j4-c4g6-rpf5"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-200",
      "CWE-22",
      "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47735.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "fixed": "2026.06.1"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "Arc is an open, SQL-native time-series database for telemetry. Prior to version 26.06.1, Arc's 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 — `read_csv_auto`, `read_csv`, `read_json`, `read_json_auto`, `read_text`, `read_blob`, `glob`, `parquet_metadata`, `parquet_schema`, `read_xlsx`, etc. — 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`.",
  "id": "CVE-2026-47735",
  "modified": "2026-08-27T11:30:54.217032300Z",
  "published": "2026-08-21T22:42:55.886Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/Basekick-Labs/arc/releases/tag/v26.06.1"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/Basekick-Labs/arc/security/advisories/GHSA-p2j4-c4g6-rpf5"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47735.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-47735"
    },
    {
      "type": "FIX",
      "url": "https://github.com/Basekick-Labs/arc/commit/91bdc29d1a02178ccf8c66375eccf85203108dfb"
    },
    {
      "type": "FIX",
      "url": "https://github.com/Basekick-Labs/arc/pull/442"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Arc has an authenticated arbitrary local-file read via DuckDB I/O functions that bypasses RBAC table-level checks"
}