data/osv/GO-2026-4335.json

{
  "schema_version": "1.3.1",
  "id": "GO-2026-4335",
  "modified": "0001-01-01T00:00:00Z",
  "published": "0001-01-01T00:00:00Z",
  "aliases": [
    "CVE-2026-23518",
    "GHSA-63m5-974w-448v"
  ],
  "summary": "Fleet has a JWT signature bypass vulnerability in Azure AD MDM enrollment in github.com/fleetdm/fleet",
  "details": "Fleet has a JWT signature bypass vulnerability in Azure AD MDM enrollment in github.com/fleetdm/fleet",
  "affected": [
    {
      "package": {
        "name": "github.com/fleetdm/fleet/v4",
        "ecosystem": "Go"
      },
      "ranges": [
        {
          "type": "SEMVER",
          "events": [
            {
              "introduced": "4.75.0"
            },
            {
              "fixed": "4.75.2"
            },
            {
              "introduced": "4.76.0"
            },
            {
              "fixed": "4.76.2"
            },
            {
              "introduced": "4.77.0"
            },
            {
              "fixed": "4.77.1"
            },
            {
              "introduced": "4.78.0"
            },
            {
              "fixed": "4.78.3"
            }
          ]
        }
      ],
      "ecosystem_specific": {
        "custom_ranges": [
          {
            "type": "ECOSYSTEM",
            "events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "4.43.5-0.20260112202845-e225ef57912c"
              }
            ]
          }
        ]
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/fleetdm/fleet/security/advisories/GHSA-63m5-974w-448v"
    },
    {
      "type": "FIX",
      "url": "https://github.com/fleetdm/fleet/commit/e225ef57912c8f4ac8977e24b5ebe1d9fd875257"
    }
  ],
  "database_specific": {
    "url": "https://pkg.go.dev/vuln/GO-2026-4335",
    "review_status": "REVIEWED"
  }
}