{"id":"CVE-2026-48105","summary":"Arc Enterprise cluster FSM applyRegisterFile accepts arbitrary file paths without validation, enabling cluster-wide path-traversal worm primitive","details":"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. The only check is that the path is non-empty. There is no parent-traversal (`..`) rejection, no allowlist of legitimate prefixes, no scheme restriction (`s3://` vs local), and no length bound. This is fixed in 2026.06.1. Some workarounds are available. Restrict cluster network access to known-trusted peers via strict firewall rules, audit the cluster manifest for unexpected paths (any path not matching the configured storage backend root is suspect), and/or disable cluster mode until the fix is available.","aliases":["GHSA-f85q-mvg8-qf37"],"modified":"2026-10-28T02:30:25.871835718Z","published":"2026-08-21T22:47:13.993Z","database_specific":{"cwe_ids":["CWE-22","CWE-345","CWE-913"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48105.json","unresolved_ranges":[{"extracted_events":[{"range":[{"fixed":"2026.06.1"}],"source":"AFFECTED_FIELD","strategy":"StringRangeExpression"}]},{"extracted_events":[{"source":"DESCRIPTION","range":[{"fixed":"2026.06.1"}]}]}],"cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/Basekick-Labs/arc/security/advisories/GHSA-f85q-mvg8-qf37"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48105.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-48105"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/basekick-labs/arc","events":[{"introduced":"0"},{"fixed":"8038f6f80f77bb48dbaa220e7415957be3988eff"}],"database_specific":{"extracted_events":[{"range":[{"introduced":"0"},{"fixed":"26.06.1"}],"source":"DESCRIPTION"}]}}],"versions":["v26.05.1","v26.04.1","v26.03.2","v26.03.1","v26.02.2","v26.02.1","v26.01.2","v26.01.1","v25.12.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48105.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N"}]}