VEXID-4816882
Published 2026-05-09 23:16:32
Last Modified 2026-05-09 23:16:32
AKA CVE-2026-45182
Summary GrapheneOS before 2026050400 allows attackers to discover the real IP address of a VPN user as a consequence of a registerQuicConnectionClosePayload optimization, because an application can let system_server transmit UDP traffic on its behalf. This occurs when the "Block connections without VPN" and "Always-on VPN" settings are enabled.
CVSS
Access Vector Local Adjacent Network
Access Complexity Low Medium High
Authentication None Single Multiple
Confidentiality None Partial Complete
Integrity None Partial Complete
Availability None Partial Complete