CVE-2026-47735

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Source
https://cve.org/CVERecord?id=CVE-2026-47735
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-47735.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-47735
Aliases
Downstream
Related
Published
2026-08-21T22:42:55Z
Modified
2026-10-16T02:59:50Z
Severity
  • 7.1 (High) CVSS_V4 - 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 CVSS Calculator
Summary
Arc has an authenticated arbitrary local-file read via DuckDB I/O functions that bypasses RBAC table-level checks
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.

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":  [
                {
                    "range":  [
                        {
                            "fixed":  "2026.06.1"
                        }
                    ],
                    "source":  "AFFECTED_FIELD",
                    "strategy":  "StringRangeExpression"
                }
            ]
        },
        {
            "extracted_events":  [
                {
                    "range":  [
                        {
                            "fixed":  "2026.06.1"
                        }
                    ],
                    "source":  "DESCRIPTION"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/basekick-labs/arc

Affected ranges

Type
GIT
Repo
https://github.com/basekick-labs/arc
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
8038f6f80f77bb48dbaa220e7415957be3988eff
Fixed
91bdc29d1a02178ccf8c66375eccf85203108dfb
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "26.06.1"
                }
            ],
            "source":  "DESCRIPTION"
        },
        {
            "range":  [
                {
                    "fixed":  "91bdc29d1a02178ccf8c66375eccf85203108dfb"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "v26.06.1",
            "range":  [
                {
                    "fixed":  "8038f6f80f77bb48dbaa220e7415957be3988eff"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

Affected versions

v25.*
v25.12.1
v26.*
v26.01.1
v26.01.2
v26.02.1
v26.02.2
v26.03.1
v26.03.2
v26.04.1
v26.05.1

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-47735.json"