CVE-2026-45182

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Summary

CVECVE-2026-45182
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-09 23:16:32 UTC
Updated2026-05-09 23:16:32 UTC
DescriptionGrapheneOS 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.

Risk And Classification

Primary CVSS: v3.1 2.2 LOW from [email protected]

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

Problem Types: CWE-441 | CWE-441 CWE-441 Unintended Proxy or Intermediary ('Confused Deputy')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary2.2LOWCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N
3.1CNACVSS2.2LOWCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA GrapheneOS GrapheneOS affected 2026050400 custom Not specified

References

ReferenceSourceLinkTags
cyberinsider.com/grapheneos-fixes-android-vpn-leak-google-refused-to-patch [email protected] cyberinsider.com
lowlevel.fun/posts/tiny-udp-cannon-android-vpn-bypass [email protected] lowlevel.fun
grapheneos.org/releases [email protected] grapheneos.org
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