CVE-2026-48105
Arc Enterprise accepts attacker-controlled file paths in cluster manifest registration
Is CVE-2026-48105 being exploited?
Not confirmed. CVE-2026-48105 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.17% probability of exploitation in the next 30 days.
How severe is CVE-2026-48105?
CVE-2026-48105 is rated High with a CVSS score of 8.3. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-48105?
Yes. A fix has been recorded for CVE-2026-48105. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-48105 affect?
CVE-2026-48105 affects Arc Enterprise (<26.06.1), Arc DB Raft FSM (internal/cluster/raft/fsm.go:applyRegisterFile). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-48105?
Upgrade to 2026.06.1; restrict cluster network and audit/disable manifests until patched
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Register attacker-chosen file paths via cluster manifests, enabling path traversal, storage access/overwrite, data theft/tampering, and potential RCE.
Immediate action required
- affected< 2026.06.1
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.