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GHSA-9p64-jpc7-m2rp
GHSA-9p64-jpc7-m2rp

Author: advisory-database[bot]

advisories/github-reviewed/2026/05/GHSA-9p64-jpc7-m2rp/GHSA-9p64-jpc7-m2rp.json

@@ -0,0 +1,141 @@
+{
+  "schema_version": "1.4.0",
+  "id": "GHSA-9p64-jpc7-m2rp",
+  "modified": "2026-06-01T15:41:08Z",
+  "published": "2026-05-18T09:31:48Z",
+  "aliases": [
+    "CVE-2026-6346"
+  ],
+  "summary": "Mattermost doesn't sanitize sensitive configuration fields before including them in support packet generation",
+  "details": "Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13, 11.4.x <= 11.4.3 fail to sanitize sensitive configuration fields before including them in support packet generation, which allows a Mattermost System Admin or any party with access to a support packet to obtain sensitive credentials in plaintext via downloading a support packet from the System Console.. Mattermost Advisory ID: MMSA-2026-00607",
+  "severity": [
+    {
+      "type": "CVSS_V3",
+      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N"
+    }
+  ],
+  "affected": [
+    {
+      "package": {
+        "ecosystem": "Go",
+        "name": "github.com/mattermost/mattermost/server/v8"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "11.5.0"
+            },
+            {
+              "fixed": "11.5.2"
+            }
+          ]
+        }
+      ]
+    },
+    {
+      "package": {
+        "ecosystem": "Go",
+        "name": "github.com/mattermost/mattermost/server/v8"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "10.11.0"
+            },
+            {
+              "fixed": "10.11.14"
+            }
+          ]
+        }
+      ]
+    },
+    {
+      "package": {
+        "ecosystem": "Go",
+        "name": "github.com/mattermost/mattermost/server/v8"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "11.4.0"
+            },
+            {
+              "fixed": "11.4.4"
+            }
+          ]
+        }
+      ]
+    },
+    {
+      "package": {
+        "ecosystem": "Go",
+        "name": "github.com/mattermost/mattermost/server/v8"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "0"
+            },
+            {
+              "fixed": "8.0.0-20260326202606-fac92f4a71f3"
+            }
+          ]
+        }
+      ]
+    },
+    {
+      "package": {
+        "ecosystem": "Go",
+        "name": "github.com/mattermost/mattermost-server"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "0"
+            },
+            {
+              "fixed": "5.3.2-0.20260326202606-fac92f4a71f3"
+            }
+          ]
+        }
+      ]
+    }
+  ],
+  "references": [
+    {
+      "type": "ADVISORY",
+      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6346"
+    },
+    {
+      "type": "WEB",
+      "url": "https://github.com/mattermost/mattermost/commit/fac92f4a71f356009e27983a980f729f599e8ba5"
+    },
+    {
+      "type": "PACKAGE",
+      "url": "https://github.com/mattermost/mattermost"
+    },
+    {
+      "type": "WEB",
+      "url": "https://mattermost.com/security-updates"
+    }
+  ],
+  "database_specific": {
+    "cwe_ids": [
+      "CWE-200"
+    ],
+    "severity": "HIGH",
+    "github_reviewed": true,
+    "github_reviewed_at": "2026-06-01T15:41:08Z",
+    "nvd_published_at": "2026-05-18T09:16:24Z"
+  }
+}