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CVE-2026-82753

🗓️ 07 Sep 2026 22:23:08Reported by EEFType 
cve
 cve
🔗 web.nvd.nist.gov👁 12 Views🌐 WEB

Unauthenticated DoS in ash_authentication_oauth2_server via unbounded CIMD client rows.

Related
Detection
Affected
Refs
Paths
CNA
[
  {
    "collectionURL": "https://repo.hex.pm",
    "cpes": [
      "cpe:2.3:a:ash-project:ash_authentication_oauth2_server:*:*:*:*:*:*:*:*"
    ],
    "defaultStatus": "unaffected",
    "modules": [
      "'Elixir.AshAuthentication.Oauth2Server.CIMD'"
    ],
    "packageName": "ash_authentication_oauth2_server",
    "packageURL": "pkg:hex/ash_authentication_oauth2_server",
    "product": "ash_authentication_oauth2_server",
    "programFiles": [
      "lib/ash_authentication/oauth2_server/cimd.ex"
    ],
    "programRoutines": [
      {
        "name": "'Elixir.AshAuthentication.Oauth2Server.CIMD':resolve_client/3"
      }
    ],
    "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'"
    ],
    "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.ex"
    ],
    "programRoutines": [
      {
        "name": "'Elixir.AshAuthentication.Oauth2Server.CIMD':resolve_client/3"
      }
    ],
    "repo": "https://github.com/ash-project/ash_authentication_oauth2_server",
    "vendor": "ash-project",
    "versions": [
      {
        "lessThan": "45e24f69e0f95d67413e2508acc2264156acb5ac",
        "status": "affected",
        "version": "e713a9ba816761140c226e2ca55b75c0b93f5984",
        "versionType": "git"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
client_idquery param/authorizeUnauthenticated /authorize endpoint can be abused by attacker supplying many distinct URL-shaped client_id values, causing upserts in CIMD and unbounded growth of storage/memory.CWE-770

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08 Sep 2026 15:18Current
5.8Medium risk
Vulners AI Score5.8
CVSS 48.2
EPSS0.0066
SSVC
12