{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-78216", "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "state": "PUBLISHED", "assignerShortName": "EEF", "dateReserved": "2026-08-31T00:45:02.446Z", "datePublished": "2026-09-08T16:42:20.908Z", "dateUpdated": "2026-09-08T16:42:20.908Z"}, "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':run_read_operation/5"}], "repo": "https://github.com/ash-project/ash_lua", "vendor": "ash-project", "versions": [{"lessThan": "0.2.2", "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':run_read_operation/5"}], "repo": "https://github.com/ash-project/ash_lua", "vendor": "ash-project", "versions": [{"lessThan": "266a5dcc56d5015b6d316c10606169e753b07450", "status": "affected", "version": "8675e47cca81f36594083a7e63379bac9e123e72", "versionType": "git"}]}], "configurations": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Reachable only when an application exposes an AshLua <code>eval</code> action over a resource whose field policies restrict a field that the calling actor can still name as an operation aggregate (for example a <code>public? true</code> but field-policy-protected attribute).</p>"}, {"base64": false, "type": "text/markdown", "value": "Reachable only when an application exposes an AshLua `eval` action over a resource whose field policies restrict a field that the calling actor can still name as an operation aggregate (for example a `public? true` but field-policy-protected attribute)."}], "value": "Reachable only when an application exposes an AshLua eval action over a resource whose field policies restrict a field that the calling actor can still name as an operation aggregate (for example a public? true but field-policy-protected attribute)."}], "cpeApplicability": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:ash-project:ash_lua:*:*:*:*:*:*:*:*", "versionEndExcluding": "0.2.2", "versionStartIncluding": "0.1.0", "vulnerable": true}], "negate": false, "operator": "OR"}], "operator": "AND"}], "credits": [{"lang": "en", "type": "remediation developer", "value": "Zach Daniel / Ash Project"}, {"lang": "en", "type": "coordinator", "value": "Jonatan M\u00e4nnchen / EEF"}, {"lang": "en", "type": "finder", "value": "Aaron Hong / Remedy"}], "dateAssigned": "2026-09-08T15:43:48.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>AshLua exposes Ash read actions to Lua scripts run through an <code>eval</code> action. A read call accepts an <code>operation</code> (<code>list</code>, <code>min</code>, <code>max</code>, <code>first</code>, <code>sum</code>, <code>avg</code>) that builds an ad-hoc <code>Ash.Query.Aggregate</code> over a named field and returns its raw value.</p>\n<p>Ash field policies redact forbidden fields on returned records (replacing them with <code>%Ash.ForbiddenField{}</code>), but that redaction does not apply to aggregate values. A script could therefore read a field the calling actor's field policies forbid by requesting it as an aggregate instead of as a field. This includes fields that are <code>public? true</code> but restricted per-actor by a field policy, such as sensitive PII. The prior hardening only enforced the exposed-field allow-list (field visibility), which is a separate axis from per-actor field-policy authorization.</p>\n<p>The fix authorizes the aggregated field against the resource's field policies, so aggregating over a field the actor may not see is refused or scoped to the rows where it is visible.</p>\n<p>This issue affects ash_lua: from 0.1.0 before 0.2.2.</p>"}, {"base64": false, "type": "text/markdown", "value": "AshLua exposes Ash read actions to Lua scripts run through an `eval` action. A read call accepts an `operation` (`list`, `min`, `max`, `first`, `sum`, `avg`) that builds an ad-hoc `Ash.Query.Aggregate` over a named field and returns its raw value.\n\nAsh field policies redact forbidden fields on returned records (replacing them with `%Ash.ForbiddenField{}`), but that redaction does not apply to aggregate values. A script could therefore read a field the calling actor's field policies forbid by requesting it as an aggregate instead of as a field. This includes fields that are `public? true` but restricted per-actor by a field policy, such as sensitive PII. The prior hardening only enforced the exposed-field allow-list (field visibility), which is a separate axis from per-actor field-policy authorization.\n\nThe fix authorizes the aggregated field against the resource's field policies, so aggregating over a field the actor may not see is refused or scoped to the rows where it is visible.\n\nThis issue affects ash_lua: from 0.1.0 before 0.2.2."}], "value": "AshLua exposes Ash read actions to Lua scripts run through an eval action. A read call accepts an operation (list, min, max, first, sum, avg) that builds an ad-hoc Ash.Query.Aggregate over a named field and returns its raw value.\n\nAsh field policies redact forbidden fields on returned records (replacing them with %Ash.ForbiddenField{}), but that redaction does not apply to aggregate values. A script could therefore read a field the calling actor's field policies forbid by requesting it as an aggregate instead of as a field. This includes fields that are public? true but restricted per-actor by a field policy, such as sensitive PII. The prior hardening only enforced the exposed-field allow-list (field visibility), which is a separate axis from per-actor field-policy authorization.\n\nThe fix authorizes the aggregated field against the resource's field policies, so aggregating over a field the actor may not see is refused or scoped to the rows where it is visible.\n\nThis issue affects ash_lua: from 0.1.0 before 0.2.2."}], "impacts": [{"capecId": "CAPEC-1", "descriptions": [{"lang": "en", "value": "CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs"}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "baseScore": 6, "baseSeverity": "MEDIUM", "privilegesRequired": "LOW", "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:L/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-1220", "description": "CWE-1220 Insufficient Granularity of Access Control", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "shortName": "EEF", "dateUpdated": "2026-09-08T16:42:20.908Z"}, "references": [{"name": "GHSA-5whv-8rcp-x33j", "tags": ["vendor-advisory"], "url": "https://github.com/ash-project/ash_lua/security/advisories/GHSA-5whv-8rcp-x33j"}, {"name": "EEF CNA record for CVE-2026-78216", "tags": ["related"], "url": "https://cna.erlef.org/cves/CVE-2026-78216.html"}, {"name": "OSV record EEF-CVE-2026-78216", "tags": ["related"], "url": "https://osv.dev/vulnerability/EEF-CVE-2026-78216"}, {"name": "Introducing commit 8675e47 in ash-project/ash_lua", "tags": ["related"], "url": "https://github.com/ash-project/ash_lua/commit/8675e47cca81f36594083a7e63379bac9e123e72"}, {"name": "Fix commit 266a5dc in ash-project/ash_lua", "tags": ["patch"], "url": "https://github.com/ash-project/ash_lua/commit/266a5dcc56d5015b6d316c10606169e753b07450"}], "source": {"discovery": "EXTERNAL"}, "title": "AshLua eval read operations can read field-policy-protected fields via aggregates"}}}

{}

{}

{}

{}