{"id":"CVE-2026-54551","title":"WireGuard Portal, or wg-portal, is a web-based configuration portal for WireGuard server management","summary":"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 subs…","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","cwe":["CWE-285"],"vendor":"h44z","product":"wg-portal","affected":["wg-portal >= 2.2.0, < 2.3.0"],"published":"2026-09-17","updated":"2026-09-21","sourceUpdated":"2026-09-21T21:17:04.437","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-54551","references":[{"url":"https://github.com/h44z/wg-portal/commit/316f389f11f3129f8603fcf3014fa7f19d7b3273","label":"security-advisories@github.com"},{"url":"https://github.com/h44z/wg-portal/releases/tag/v2.3.0","label":"security-advisories@github.com"},{"url":"https://github.com/h44z/wg-portal/security/advisories/GHSA-r45j-3jxf-wgfr","label":"security-advisories@github.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-21T21:00:43.952412Z"},"epss":0.0021,"epssPercentile":0.1146,"ingestedAt":"2026-09-17T17:23:30.697Z","slug":"CVE-2026-54551","body":"## Overview\n\nWireGuard 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}