CVE-2026-82757 ash_authentication_oauth2_server CIMD fetcher classifies IPv4-in-IPv6 and site-local addresses as public, allowing SSRF

[
  {
    "collectionURL": "https://repo.hex.pm",
    "cpes": [
      "cpe:2.3:a:ash-project:ash_authentication_oauth2_server:*:*:*:*:*:*:*:*"
    ],
    "defaultStatus": "unaffected",
    "modules": [
      "'Elixir.AshAuthentication.Oauth2Server.CIMD.ReqFetcher'"
    ],
    "packageName": "ash_authentication_oauth2_server",
    "packageURL": "pkg:hex/ash_authentication_oauth2_server",
    "product": "ash_authentication_oauth2_server",
    "programFiles": [
      "lib/ash_authentication/oauth2_server/cimd/req_fetcher.ex"
    ],
    "programRoutines": [
      {
        "name": "'Elixir.AshAuthentication.Oauth2Server.CIMD.ReqFetcher':public_ip?/1"
      },
      {
        "name": "'Elixir.AshAuthentication.Oauth2Server.CIMD.ReqFetcher':fetch/2"
      }
    ],
    "repo": "https://github.com/ash-project/ash_authentication_oauth2_server",
    "vendor": "ash-project",
    "versions": [
      {
        "lessThan": "0.3.1",
        "status": "affected",
        "version": "0.3.0",
        "versionType": "semver"
      }
    ]
  },
  {
    "collectionURL": "https://github.com",
    "cpes": [
      "cpe:2.3:a:ash-project:ash_authentication_oauth2_server:*:*:*:*:*:*:*:*"
    ],
    "defaultStatus": "unaffected",
    "modules": [
      "'Elixir.AshAuthentication.Oauth2Server.CIMD.ReqFetcher'"
    ],
    "packageName": "ash-project/ash_authentication_oauth2_server",
    "packageURL": "pkg:github/ash-project/ash_authentication_oauth2_server",
    "product": "ash_authentication_oauth2_server",
    "programFiles": [
      "lib/ash_authentication/oauth2_server/cimd/req_fetcher.ex"
    ],
    "programRoutines": [
      {
        "name": "'Elixir.AshAuthentication.Oauth2Server.CIMD.ReqFetcher':public_ip?/1"
      },
      {
        "name": "'Elixir.AshAuthentication.Oauth2Server.CIMD.ReqFetcher':fetch/2"
      }
    ],
    "repo": "https://github.com/ash-project/ash_authentication_oauth2_server",
    "vendor": "ash-project",
    "versions": [
      {
        "lessThan": "268b591261a3473ab9b87272963e4dd2fd99d972",
        "status": "affected",
        "version": "e713a9ba816761140c226e2ca55b75c0b93f5984",
        "versionType": "git"
      }
    ]
  }
]