CVE-2026-45182

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CVSS 3.1

2.2 low

EPSS

<1%p1

Published

May 9, 2026 (May 9, 2026)

Modified

Jul 24, 2026

Description

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.

Weakness: CWE-441
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (0.1%)

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