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GHSA-4pmx-622h-x359
GHSA-4pmx-622h-x359

Author: advisory-database[bot]

advisories/github-reviewed/2026/03/GHSA-4pmx-622h-x359/GHSA-4pmx-622h-x359.json

@@ -0,0 +1,65 @@
+{
+  "schema_version": "1.4.0",
+  "id": "GHSA-4pmx-622h-x359",
+  "modified": "2026-03-20T22:26:12Z",
+  "published": "2026-03-16T21:34:32Z",
+  "aliases": [
+    "CVE-2026-26304"
+  ],
+  "summary": "Mattermost fails to verify run_create permission for empty playbookId",
+  "details": "Mattermost versions 11.3.x <= 11.3.0, 11.2.x <= 11.2.2 fail to verify run_create permission for empty playbookId, which allows team members to create unauthorized runs via the playbook run API. Mattermost Advisory ID: MMSA-2025-00542",
+  "severity": [
+    {
+      "type": "CVSS_V3",
+      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"
+    }
+  ],
+  "affected": [
+    {
+      "package": {
+        "ecosystem": "Go",
+        "name": "github.com/mattermost/mattermost-plugin-playbooks"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "0"
+            },
+            {
+              "fixed": "1.41.1-0.20260316224925-705f54a81841"
+            }
+          ]
+        }
+      ]
+    }
+  ],
+  "references": [
+    {
+      "type": "ADVISORY",
+      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-26304"
+    },
+    {
+      "type": "WEB",
+      "url": "https://github.com/mattermost/mattermost-plugin-playbooks/commit/705f54a818410f3612df3865bfde608ed471037e"
+    },
+    {
+      "type": "PACKAGE",
+      "url": "https://github.com/mattermost/mattermost-plugin-playbooks"
+    },
+    {
+      "type": "WEB",
+      "url": "https://mattermost.com/security-updates"
+    }
+  ],
+  "database_specific": {
+    "cwe_ids": [
+      "CWE-863"
+    ],
+    "severity": "MODERATE",
+    "github_reviewed": true,
+    "github_reviewed_at": "2026-03-20T22:26:12Z",
+    "nvd_published_at": "2026-03-16T20:16:17Z"
+  }
+}