{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-82740", "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "state": "PUBLISHED", "assignerShortName": "EEF", "dateReserved": "2026-08-31T00:59:10.002Z", "datePublished": "2026-09-01T03:29:11.804Z", "dateUpdated": "2026-09-01T12:42:58.541Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://repo.hex.pm", "cpes": ["cpe:2.3:a:ash-project:ash:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.Ash.Type'"], "packageName": "ash", "packageURL": "pkg:hex/ash", "product": "ash", "programFiles": ["lib/ash/type/type.ex"], "programRoutines": [{"name": "'Elixir.Ash.Type':apply_constraints/3"}], "repo": "https://github.com/ash-project/ash", "vendor": "ash-project", "versions": [{"lessThan": "3.32.2", "status": "affected", "version": "2.16.1", "versionType": "semver"}]}, {"collectionURL": "https://github.com", "cpes": ["cpe:2.3:a:ash-project:ash:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.Ash.Type'"], "packageName": "ash-project/ash", "packageURL": "pkg:github/ash-project/ash", "product": "ash", "programFiles": ["lib/ash/type/type.ex"], "programRoutines": [{"name": "'Elixir.Ash.Type':apply_constraints/3"}], "repo": "https://github.com/ash-project/ash", "vendor": "ash-project", "versions": [{"lessThan": "c85ccff7dc6e3b0b3e40ad788b0056b3b6bee5ce", "status": "affected", "version": "7b50a401d85018371659e51c34c89d7e1d0c2ac9", "versionType": "git"}]}], "cpeApplicability": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:ash-project:ash:*:*:*:*:*:*:*:*", "versionEndExcluding": "3.32.2", "versionStartIncluding": "2.16.1", "vulnerable": true}], "negate": false, "operator": "OR"}], "operator": "AND"}], "credits": [{"lang": "en", "type": "coordinator", "value": "Jonatan M\u00e4nnchen / EEF"}, {"lang": "en", "type": "remediation developer", "value": "Zach Daniel / Ash Project"}, {"lang": "en", "type": "reporter", "value": "Peter Ullrich"}, {"lang": "en", "type": "finder", "value": "Peter Ullrich"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Improper Input Validation vulnerability in ash-project ash fails to enforce the outer array constraints on a doubly-nested <code>{:array, {:array, type}}</code> attribute, letting invalid input pass validation.</p>\n<p><code>Ash.Type.apply_constraints/3</code> (<code>lib/ash/type/type.ex</code>) handled the <code>{:array, {:array, type}}</code> case by mapping only the inner <code>{:array, type}</code> constraints over each element, so constraints declared on the outer array (such as <code>min_length</code>, <code>max_length</code>, and <code>nil_items?</code>) were never applied. 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