OpenSave before 2.4.0-beta.1 fails to validate sender identity in WAN relay requests, allowing unpaired room members to impersonate paired devices by spoofing the RelayMessage From field.
CVSS 4.0MEDIUM 6.3·Network·No auth·No interaction·EPSS 0.00219·Published 2026-09-30·Fixed in 2.4.0-beta.1CWE-290