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GHSA-j6gg-r5jc-47cm
GHSA-j6gg-r5jc-47cm

Author: advisory-database[bot]

advisories/github-reviewed/2025/11/GHSA-j6gg-r5jc-47cm/GHSA-j6gg-r5jc-47cm.json

@@ -0,0 +1,141 @@
+{
+  "schema_version": "1.4.0",
+  "id": "GHSA-j6gg-r5jc-47cm",
+  "modified": "2025-11-14T22:08:04Z",
+  "published": "2025-11-14T09:30:27Z",
+  "aliases": [
+    "CVE-2025-11776"
+  ],
+  "summary": "Mattermost fails to properly restrict access to archived channel search API",
+  "details": "Mattermost versions < 11 fail to properly restrict access to archived channel search API which allows guest users to discover archived public channels via the `/api/v4/teams/{team_id}/channels/search_archived` endpoint",
+  "severity": [
+    {
+      "type": "CVSS_V3",
+      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
+    }
+  ],
+  "affected": [
+    {
+      "package": {
+        "ecosystem": "Go",
+        "name": "github.com/mattermost/mattermost/server/v8"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "0"
+            },
+            {
+              "fixed": "8.0.0-20250815165020-c8d66301415d"
+            }
+          ]
+        }
+      ]
+    },
+    {
+      "package": {
+        "ecosystem": "Go",
+        "name": "github.com/mattermost/mattermost"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "0"
+            },
+            {
+              "fixed": "5.3.2-0.20250815165020-c8d66301415d"
+            }
+          ]
+        }
+      ]
+    },
+    {
+      "package": {
+        "ecosystem": "Go",
+        "name": "github.com/mattermost/mattermost-server"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "0"
+            },
+            {
+              "fixed": "5.3.2-0.20250815165020-c8d66301415d"
+            }
+          ]
+        }
+      ]
+    },
+    {
+      "package": {
+        "ecosystem": "Go",
+        "name": "github.com/mattermost/mattermost-server/v5"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "0"
+            },
+            {
+              "fixed": "5.3.2-0.20250815165020-c8d66301415d"
+            }
+          ]
+        }
+      ]
+    },
+    {
+      "package": {
+        "ecosystem": "Go",
+        "name": "github.com/mattermost/mattermost-server/v6"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "0"
+            },
+            {
+              "fixed": "5.3.2-0.20250815165020-c8d66301415d"
+            }
+          ]
+        }
+      ]
+    }
+  ],
+  "references": [
+    {
+      "type": "ADVISORY",
+      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-11776"
+    },
+    {
+      "type": "WEB",
+      "url": "https://github.com/mattermost/mattermost/commit/c8d66301415d5b447df0e829bdbaa92e8a83ecf8"
+    },
+    {
+      "type": "WEB",
+      "url": "https://mattermost.com/security-updates"
+    },
+    {
+      "type": "PACKAGE",
+      "url": "github.com/mattermost/mattermost"
+    }
+  ],
+  "database_specific": {
+    "cwe_ids": [
+      "CWE-863"
+    ],
+    "severity": "MODERATE",
+    "github_reviewed": true,
+    "github_reviewed_at": "2025-11-14T22:08:04Z",
+    "nvd_published_at": "2025-11-14T08:15:43Z"
+  }
+}