CVE-2026-47735

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`.

CVSS

No CVSS.

References

Link	Resource
https://github.com/Basekick-Labs/arc/commit/91bdc29d1a02178ccf8c66375eccf85203108dfb
https://github.com/Basekick-Labs/arc/pull/442
https://github.com/Basekick-Labs/arc/releases/tag/v26.06.1
https://github.com/Basekick-Labs/arc/security/advisories/GHSA-p2j4-c4g6-rpf5

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-21 23:16

Updated : 2026-09-09 21:06

NVD link : CVE-2026-47735

Mitre link : CVE-2026-47735

CVE.ORG link : CVE-2026-47735

JSON object : View

Products Affected

No product.

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

CWE-918

Server-Side Request Forgery (SSRF)

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