{
  "schema_version": "1.4.0",
  "id": "GHSA-h4rr-f37j-4hh7",
  "modified": "2025-04-23T15:17:14Z",
  "published": "2025-04-16T09:32:13Z",
  "aliases": [
    "CVE-2025-27571"
  ],
  "summary": "Mattermost Incorrect Authorization vulnerability",
  "details": "Mattermost versions 10.5.x <= 10.5.1, 10.4.x <= 10.4.3, 9.11.x <= 9.11.9 fail to check the \"Allow Users to View Archived Channels\" configuration when fetching channel metadata of a post from archived channels, which allows authenticated users to access such information when a channel is archived.",
  "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": "10.5.0"
            },
            {
              "fixed": "10.5.2"
            }
          ]
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/mattermost/mattermost/server/v8"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "10.4.0"
            },
            {
              "fixed": "10.4.4"
            }
          ]
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/mattermost/mattermost/server/v8"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "9.11.0"
            },
            {
              "fixed": "9.11.10"
            }
          ]
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/mattermost/mattermost/server/v8"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8.0.0-20250314142426-c049748b8863"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-27571"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/commit/341186355d982ac4cbe37668d7cdb0cf6275fe44"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/commit/629f68a85dd6ed5ba0c51a9356c3a3200f50657f"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/commit/8e82d8df61068fc56b0f3e51ef1cc947bc87cec1"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/commit/ae8a952bcaaa5f77a92043e2538f625eac72e927"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/commit/c6f6b664811795f36b9cf05b0e2b537c44c65bc1"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/mattermost/mattermost"
    },
    {
      "type": "WEB",
      "url": "https://mattermost.com/security-updates"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2025-3619"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2025-04-16T14:53:24Z",
    "nvd_published_at": "2025-04-16T08:15:14Z"
  }
}