{"id":"CVE-2026-45182","state":"PUBLISHED","title":"GrapheneOS before 2026050400 allows attackers to discover the real IP address of a VPN user as a consequence of a registerQuicConnectionClosePayload optimization, because an applic","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.","publishedAt":"2026-05-09T22:07:59.122Z","updatedAt":"2026-05-11T15:00:48.072Z","severity":{"score":2.2,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N","source":"mitre"},"assigner":"mitre","products":["GrapheneOS GrapheneOS"],"affected":[{"vendor":"GrapheneOS","product":"GrapheneOS","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2026050400","versionType":"custom"}]}],"references":["https://lowlevel.fun/posts/tiny-udp-cannon-android-vpn-bypass/","https://grapheneos.org/releases#2026050400","https://cyberinsider.com/grapheneos-fixes-android-vpn-leak-google-refused-to-patch/"],"weaknesses":["CWE-441"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/45xxx/CVE-2026-45182.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-45182","state":"PUBLISHED","datePublished":"2026-05-09T22:07:59.122Z","dateUpdated":"2026-05-11T15:00:48.072Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2026-05-09T22:07:58.636Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"GrapheneOS","product":"GrapheneOS","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2026050400","versionType":"custom"}]}],"references":[{"url":"https://lowlevel.fun/posts/tiny-udp-cannon-android-vpn-bypass/"},{"url":"https://grapheneos.org/releases#2026050400"},{"url":"https://cyberinsider.com/grapheneos-fixes-android-vpn-leak-google-refused-to-patch/"}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":2.2,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-441","description":"CWE-441 Unintended Proxy or Intermediary ('Confused Deputy')","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"mitre","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateUpdated":"2026-05-09T22:12:55.615Z"},"x_generator":{"engine":"CVE-Request-form 0.0.1"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://lowlevel.fun/posts/tiny-udp-cannon-android-vpn-bypass/","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-11T15:00:11.708239Z","id":"CVE-2026-45182","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-11T15:00:48.072Z"}}]}}}