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vuln-cve/data/2026/78xxx/CVE-2026-78216.json
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{
"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": "2026-09-08T17:27:08.856Z"
},
"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 Männchen / 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"
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-09-08T17:26:34.675766Z",
"id": "CVE-2026-78216",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-09-08T17:27:08.856Z"
}
}
]
}
}