CVE-2026-55678 Arc: Unauthenticated cluster node admission when `cluster.shared_secret` is unset

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.sharedsecret is not configured. The defaults in internal/config/config.go set...

EUVD-2026-67945

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.sharedsecret is not configured. The defaults in internal/config/config.go set...

PT-2026-83343

Name of the Vulnerable Software and Affected Versions Arc versions 26.02.1 through 26.06.1 Description Arc Enterprise clustering allows cluster join requests without authentication when cluster.enabled is set to true but cluster.shared secret is not configured. A network attacker who can reach th...

CVE-2026-55678: Improper Access Control

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.sharedsecret is not configured. The defaults in internal/config/config.go set...

CVE-2026-48050

Arc is an open, SQL-native time-series database for telemetry. Versions prior to 26.06.1 register Go's net/http/pprof handlers at /debug/pprof/ via app.Usepprof.New in internal/api/server.go, and /debug/pprof is added to PublicPrefixes in cmd/arc/main.go. The auth middleware short-circuits before...

CVE-2026-48105

Arc is an open, SQL-native time-series database for telemetry. Prior to version 26.06.1, Arc Enterprise's 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. T...

CVE-2026-48106

Arc is an open, SQL-native time-series database for telemetry. Prior to version 26.06.1, Arc Enterprise's 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...

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 readparquet and arcpartitionagg via regex denylist. The broader DuckDB I/O function family — readcsvauto, readcsv, readjson,...

CVE-2026-48106 Arc Enterprise cluster replication accepts unauthenticated MsgReplicateSync messages, enabling cluster-wide data injection from any TLS-trusted peer

Arc is an open, SQL-native time-series database for telemetry. Prior to version 26.06.1, Arc Enterprise's 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...

CVE-2026-48106 Arc Enterprise cluster replication accepts unauthenticated MsgReplicateSync messages, enabling cluster-wide data injection from any TLS-trusted peer

Arc is an open, SQL-native time-series database for telemetry. Prior to version 26.06.1, Arc Enterprise's 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...

CVE-2026-48106

Arc Enterprise (an open, SQL-native time-series database for telemetry) prior to version 2026.06.1 has a vulnerability in its cluster replication receiver (internal/cluster/replication/receiver.go). The MsgReplicateSync payload is accepted without any application-layer authentication — no HMAC, s...

EUVD-2026-64193

Arc is an open, SQL-native time-series database for telemetry. Prior to version 26.06.1, Arc Enterprise's 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...

CVE-2026-48105 Arc Enterprise cluster FSM applyRegisterFile accepts arbitrary file paths without validation, enabling cluster-wide path-traversal worm primitive

Arc is an open, SQL-native time-series database for telemetry. Prior to version 26.06.1, Arc Enterprise's 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. T...

CVE-2026-48105 Arc Enterprise cluster FSM applyRegisterFile accepts arbitrary file paths without validation, enabling cluster-wide path-traversal worm primitive

Arc is an open, SQL-native time-series database for telemetry. Prior to version 26.06.1, Arc Enterprise's 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. T...

EUVD-2026-64192

Arc is an open, SQL-native time-series database for telemetry. Prior to version 26.06.1, Arc Enterprise's 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. T...

CVE-2026-48105

Arc Enterprise (an open, SQL-native time-series database for telemetry) contains a path-traversal vulnerability in its Raft FSM (internal/cluster/raft/fsm.go:applyRegisterFile). Prior to version 26.06.1 , the function accepts attacker-chosen file paths in manifest-registration proposals with no v...

EUVD-2026-64191

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 readparquet and arcpartitionagg via regex denylist. The broader DuckDB I/O function family — readcsvauto, readcsv, readjson,...

CVE-2026-47735 Arc has an authenticated arbitrary local-file read via DuckDB I/O functions that bypasses RBAC table-level checks

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 readparquet and arcpartitionagg via regex denylist. The broader DuckDB I/O function family — readcsvauto, readcsv, readjson,...

CVE-2026-47735 Arc has an authenticated arbitrary local-file read via DuckDB I/O functions that bypasses RBAC table-level checks

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 readparquet and arcpartitionagg via regex denylist. The broader DuckDB I/O function family — readcsvauto, readcsv, readjson,...

CVE-2026-47735

Arc (Basekick Labs) is an open-source SQL-native time-series database for telemetry. Prior to 26.06.1 , its user-SQL validator (internal/api/query.go:ValidateSQLRequest) blocked only read_parquet( and arc_partition_agg( via regex denylist, while the broader DuckDB I/O function family (read_csv_au...