CVE-2026-47735

{"id": "CVE-2026-47735", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-47735", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-25T13:35:46.351832Z"}}], "cvssMetricV40": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 7.1, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "Basekick-Labs", "product": "arc", "versions": [{"status": "affected", "version": "< 2026.06.1"}]}]}], "published": "2026-08-21T23:16:24.917", "references": [{"url": "https://github.com/Basekick-Labs/arc/commit/91bdc29d1a02178ccf8c66375eccf85203108dfb", "source": "security-advisories@github.com"}, {"url": "https://github.com/Basekick-Labs/arc/pull/442", "source": "security-advisories@github.com"}, {"url": "https://github.com/Basekick-Labs/arc/releases/tag/v26.06.1", "source": "security-advisories@github.com"}, {"url": "https://github.com/Basekick-Labs/arc/security/advisories/GHSA-p2j4-c4g6-rpf5", "source": "security-advisories@github.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-22"}, {"lang": "en", "value": "CWE-200"}, {"lang": "en", "value": "CWE-918"}]}], "descriptions": [{"lang": "en", "value": "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 \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`."}, {"lang": "es", "value": "Arc es una base de datos de series temporales abierta, nativa de SQL, para telemetr\u00eda. Antes de la versi\u00f3n 26.06.1, el validador SQL de usuario de Arc ('internal/api/query.go:ValidateSQLRequest') bloqueaba solo 'read_parquet(' y 'arc_partition_agg(' a trav\u00e9s de una lista de denegaci\u00f3n de expresiones regulares. La familia m\u00e1s amplia de funciones de E/S de DuckDB - 'read_csv_auto', 'read_csv', 'read_json', 'read_json_auto', 'read_text', 'read_blob', 'glob', 'parquet_metadata', 'parquet_schema', 'read_xlsx', etc. - no estaba bloqueada. La extracci\u00f3n de referencias de tablas RBAC inspeccionaba solo las cl\u00e1usulas 'FROM'/'JOIN', por lo que las funciones de tabla escalares en la lista 'SELECT' pasaron desapercibidas por ambas capas. Esto se corrigi\u00f3 en 2026.06.1 mediante un sybox estructural en la capa de DuckDB. Despu\u00e9s del bloqueo, DuckDB se niega a abrir cualquier archivo fuera de la lista de permitidos y se niega a realizar m\u00e1s 'INSTALL'/'LOAD'. Las extensiones ya cargadas siguen siendo invocables. Algunas soluciones alternativas est\u00e1n disponibles. Restrinja el acceso a la API a redes de confianza conocidas mediante reglas de cortafuegos o, como una mitigaci\u00f3n temporal, a\u00f1ada 'read_csv'/'read_json'/'glob', etc. a 'dangerousSQLPattern' en 'internal/api/query.go'."}], "lastModified": "2026-10-12T16:10:00.220", "sourceIdentifier": "security-advisories@github.com"}