data/osv/GO-2026-6286.json

{
  "schema_version": "1.3.1",
  "id": "GO-2026-6286",
  "modified": "0001-01-01T00:00:00Z",
  "published": "0001-01-01T00:00:00Z",
  "aliases": [
    "CVE-2026-3433",
    "GHSA-rp4v-qc77-phm4"
  ],
  "summary": "Mattermost doesn't restrict role_updated websocket event broadcasts to members of the affected team or channel in github.com/mattermost/mattermost-server",
  "details": "Mattermost doesn't restrict role_updated websocket event broadcasts to members of the affected team or channel in github.com/mattermost/mattermost-server",
  "affected": [
    {
      "package": {
        "name": "github.com/mattermost/mattermost-server",
        "ecosystem": "Go"
      },
      "ranges": [
        {
          "type": "SEMVER",
          "events": [
            {
              "introduced": "10.11.0+incompatible"
            },
            {
              "fixed": "10.11.17+incompatible"
            },
            {
              "introduced": "11.5.0+incompatible"
            },
            {
              "fixed": "11.5.5+incompatible"
            },
            {
              "introduced": "11.6.0+incompatible"
            },
            {
              "fixed": "11.6.1+incompatible"
            }
          ]
        }
      ],
      "ecosystem_specific": {}
    },
    {
      "package": {
        "name": "github.com/mattermost/mattermost-server/v5",
        "ecosystem": "Go"
      },
      "ranges": [
        {
          "type": "SEMVER",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "ecosystem_specific": {}
    },
    {
      "package": {
        "name": "github.com/mattermost/mattermost-server/v6",
        "ecosystem": "Go"
      },
      "ranges": [
        {
          "type": "SEMVER",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "ecosystem_specific": {}
    },
    {
      "package": {
        "name": "github.com/mattermost/mattermost/server/v8",
        "ecosystem": "Go"
      },
      "ranges": [
        {
          "type": "SEMVER",
          "events": [
            {
              "introduced": "8.0.0-20250731163400-5b955468ea1e"
            },
            {
              "fixed": "8.0.0-20260504071740-9408b98025d7"
            }
          ]
        }
      ],
      "ecosystem_specific": {}
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-rp4v-qc77-phm4"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3433"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/commit/0a0ab0d54d899d308bd1352cc577036917500318"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/commit/7425c6817bf244f976c729f8a73cecac8039a1e1"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/commit/9408b98025d7364d7dfe7cdb28fcd109b1b595a6"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/commit/a30a331a29b9766d46716d4252056d7b74e66da0"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/pull/35497"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/pull/36256"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/pull/36257"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/pull/36341"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/releases/tag/v10.11.16"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/releases/tag/v11.5.5"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/releases/tag/v11.6.2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/releases/tag/v11.7.0"
    },
    {
      "type": "WEB",
      "url": "https://mattermost.com/security-updates"
    }
  ],
  "database_specific": {
    "url": "https://pkg.go.dev/vuln/GO-2026-6286",
    "review_status": "UNREVIEWED"
  }
}