{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54551","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-06-15T19:04:14.456Z","datePublished":"2026-09-17T17:10:53.435Z","dateUpdated":"2026-09-21T21:00:54.300Z"},"containers":{"cna":{"title":"WireGuard Portal: Authenticated WebSocket /api/v0/ws broadcasts all peers' and interfaces' traffic stats to every user (missing per-user authorization)","problemTypes":[{"descriptions":[{"cweId":"CWE-285","lang":"en","description":"CWE-285: Improper Authorization","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/h44z/wg-portal/security/advisories/GHSA-r45j-3jxf-wgfr","tags":["x_refsource_CONFIRM"],"url":"https://github.com/h44z/wg-portal/security/advisories/GHSA-r45j-3jxf-wgfr"},{"name":"https://github.com/h44z/wg-portal/commit/316f389f11f3129f8603fcf3014fa7f19d7b3273","tags":["x_refsource_MISC"],"url":"https://github.com/h44z/wg-portal/commit/316f389f11f3129f8603fcf3014fa7f19d7b3273"},{"name":"https://github.com/h44z/wg-portal/releases/tag/v2.3.0","tags":["x_refsource_MISC"],"url":"https://github.com/h44z/wg-portal/releases/tag/v2.3.0"}],"affected":[{"vendor":"h44z","product":"wg-portal","versions":[{"version":">= 2.2.0, < 2.3.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-09-17T17:10:53.435Z"},"descriptions":[{"lang":"en","value":"WireGuard Portal, or wg-portal, is a web-based configuration portal for WireGuard server management. From 2.2.0 until 2.3.0, the authenticated GET /api/v0/ws statistics WebSocket in internal/app/api/v0/handlers/endpoint_websocket.go subscribes to TopicPeerStatsUpdated and TopicInterfaceStatsUpdated and forwards every TrafficDelta event without per-user authorization in handleWebsocket(). A low-privilege user can enumerate peer public keys through EntityId and monitor BytesReceived and BytesTransmitted values for peers belonging to other users. The same connection exposes interface_stats and interface names that the REST API limits to administrators. Tunnel content, AllowedIPs, and user identities remain authorization-gated. This issue is fixed in version 2.3.0."}],"source":{"advisory":"GHSA-r45j-3jxf-wgfr","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-21T21:00:43.952412Z","id":"CVE-2026-54551","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-21T21:00:54.300Z"}}]}}