{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-82586", "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "state": "PUBLISHED", "assignerShortName": "EEF", "dateReserved": "2026-09-07T19:30:01.631Z", "datePublished": "2026-09-07T22:34:14.837Z", "dateUpdated": "2026-09-07T22:34:14.837Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://repo.hex.pm", "cpes": ["cpe:2.3:a:ash-project:ash_lua:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.AshLua.Runtime'"], "packageName": "ash_lua", "packageURL": "pkg:hex/ash_lua", "product": "ash_lua", "programFiles": ["lib/ash_lua/runtime.ex"], "programRoutines": [{"name": "'Elixir.AshLua.Runtime':eval!/2"}], "repo": "https://github.com/ash-project/ash_lua", "vendor": "ash-project", "versions": [{"lessThan": "0.2.1", "status": "affected", "version": "0.1.0", "versionType": "semver"}]}, {"collectionURL": "https://github.com", "cpes": ["cpe:2.3:a:ash-project:ash_lua:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.AshLua.Runtime'"], "packageName": "ash-project/ash_lua", "packageURL": "pkg:github/ash-project/ash_lua", "product": "ash_lua", "programFiles": ["lib/ash_lua/runtime.ex"], "programRoutines": [{"name": "'Elixir.AshLua.Runtime':eval!/2"}], "repo": "https://github.com/ash-project/ash_lua", "vendor": "ash-project", "versions": [{"lessThan": "c0dfcd9494766d548178c37df0bd01cff378e1c7", "status": "affected", "version": "8675e47cca81f36594083a7e63379bac9e123e72", "versionType": "git"}]}], "configurations": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Reachable only when an application exposes AshLua scripting (the <code>AshLua.Resource</code> / <code>AshLua.Domain</code> extensions) to callers who can submit or influence Lua scripts, and the exposed resource has attributes that are not on the exposed-field surface.</p>"}, {"base64": false, "type": "text/markdown", "value": "Reachable only when an application exposes AshLua scripting (the `AshLua.Resource` / `AshLua.Domain` extensions) to callers who can submit or influence Lua scripts, and the exposed resource has attributes that are not on the exposed-field surface."}], "value": "Reachable only when an application exposes AshLua scripting (the AshLua.Resource / AshLua.Domain extensions) to callers who can submit or influence Lua scripts, and the exposed resource has attributes that are not on the exposed-field surface."}], "cpeApplicability": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:ash-project:ash_lua:*:*:*:*:*:*:*:*", "versionEndExcluding": "0.2.1", "versionStartIncluding": "0.1.0", "vulnerable": true}], "negate": false, "operator": "OR"}], "operator": "AND"}], "credits": [{"lang": "en", "type": "finder", "value": "Peter Ullrich"}, {"lang": "en", "type": "reporter", "value": "Peter Ullrich"}, {"lang": "en", "type": "remediation developer", "value": "Zach Daniel / Ash Project"}, {"lang": "en", "type": "coordinator", "value": "Jonatan M\u00e4nnchen / EEF"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Improper Protection of Alternate Path vulnerability in ash-project ash_lua allows a user-supplied Lua script to read attributes that are not on the exposed-field allow-list.</p>\n<p>AshLua exposes Ash resources to Lua scripts, gated by a manifest declaring which fields are exposed. The <code>read</code> action's <code>operation</code> aggregate path in <code>AshLua.Runtime</code> took the field name straight from the Lua call and resolved it with only <code>String.to_existing_atom</code> and <code>Ash.Query.Aggregate.new!</code>, neither of which consults the exposed-field allow-list the normal <code>fields</code> path enforces. A script can therefore read the value of any attribute of any record the actor may read, including private <code>sensitive?: true</code> columns, via <code>resource.read({ operation = {\"list\", \"hashed_password\"} })</code>; <code>min</code> and <code>max</code> give a value oracle. Anyone able to submit or influence a Lua script can reach this.</p>\n<p>This issue affects ash_lua: from 0.1.0 before 0.2.1.</p>"}, {"base64": false, "type": "text/markdown", "value": "Improper Protection of Alternate Path vulnerability in ash-project ash_lua allows a user-supplied Lua script to read attributes that are not on the exposed-field allow-list.\n\nAshLua exposes Ash resources to Lua scripts, gated by a manifest declaring which fields are exposed. The `read` action's `operation` aggregate path in `AshLua.Runtime` took the field name straight from the Lua call and resolved it with only `String.to_existing_atom` and `Ash.Query.Aggregate.new!`, neither of which consults the exposed-field allow-list the normal `fields` path enforces. A script can therefore read the value of any attribute of any record the actor may read, including private `sensitive?: true` columns, via `resource.read({ operation = {\"list\", \"hashed_password\"} })`; `min` and `max` give a value oracle. Anyone able to submit or influence a Lua script can reach this.\n\nThis issue affects ash_lua: from 0.1.0 before 0.2.1."}], "value": "Improper Protection of Alternate Path vulnerability in ash-project ash_lua allows a user-supplied Lua script to read attributes that are not on the exposed-field allow-list.\n\nAshLua exposes Ash resources to Lua scripts, gated by a manifest declaring which fields are exposed. The read action's operation aggregate path in AshLua.Runtime took the field name straight from the Lua call and resolved it with only String.to_existing_atom and Ash.Query.Aggregate.new!, neither of which consults the exposed-field allow-list the normal fields path enforces. A script can therefore read the value of any attribute of any record the actor may read, including private sensitive?: true columns, via resource.read({ operation = {\"list\", \"hashed_password\"} }); min and max give a value oracle. Anyone able to submit or influence a Lua script can reach this.\n\nThis issue affects ash_lua: from 0.1.0 before 0.2.1."}], "impacts": [{"capecId": "CAPEC-554", "descriptions": [{"lang": "en", "value": "CAPEC-554 Functionality Bypass"}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "baseScore": 8.2, "baseSeverity": "HIGH", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-424", "description": "CWE-424 Improper Protection of Alternate Path", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "shortName": "EEF", "dateUpdated": "2026-09-07T22:34:14.837Z"}, "references": [{"tags": ["vendor-advisory", "related"], "url": "https://github.com/ash-project/ash_lua/security/advisories/GHSA-37jv-wc37-fhcw"}, {"tags": ["related"], "url": "https://cna.erlef.org/cves/CVE-2026-82586.html"}, {"tags": ["related"], "url": "https://osv.dev/vulnerability/EEF-CVE-2026-82586"}, {"tags": ["patch"], "url": "https://github.com/ash-project/ash_lua/commit/c0dfcd9494766d548178c37df0bd01cff378e1c7"}], "source": {"discovery": "EXTERNAL"}, "title": "AshLua read operation aggregate bypasses the exposed-field allow-list, exposing private attributes"}}}

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