CVE-2026-45182 LOW

CVE-2026-45182

Vendor Grapheneos
Product GrapheneOS
Weakness CWE-441
Published May 9, 2026
Last update May 11, 2026
View on NVD All CVEs

CVSS base score

2.2/10
Attack vector Local
Attack complexity High
Privileges required Low
User interaction Required
Confidentiality Low
Integrity None

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 9, 2026 CVE published
May 11, 2026 Record updated