CVE-2026-45182

Low

Open

TLP:CLEAR

NVD CVE.org

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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.

Details

CVSS Score: 2.2
EPSS Score ⓘ: 0.09%

0.7th percentile
CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N
Confidence: 90%
Published: May 9, 2026
Last Modified: May 9, 2026

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