{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-70395",
        "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "state": "PUBLISHED",
        "assignerShortName": "EEF",
        "dateReserved": "2026-08-04T14:30:01.369Z",
        "datePublished": "2026-08-09T18:17:07.321Z",
        "dateUpdated": "2026-08-10T18:23:15.009Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "collectionURL": "https://repo.hex.pm",
                    "cpes": [
                        "cpe:2.3:a:ash-project:ash:*:*:*:*:*:*:*:*"
                    ],
                    "defaultStatus": "unaffected",
                    "modules": [
                        "'Elixir.Ash.Actions.ManagedRelationships'",
                        "'Elixir.Ash.Changeset'"
                    ],
                    "packageName": "ash",
                    "packageURL": "pkg:hex/ash",
                    "product": "ash",
                    "programFiles": [
                        "lib/ash/actions/managed_relationships.ex",
                        "lib/ash/changeset/changeset.ex"
                    ],
                    "programRoutines": [
                        {
                            "name": "'Elixir.Ash.Actions.ManagedRelationships':setup_managed_belongs_to_relationships/3"
                        },
                        {
                            "name": "'Elixir.Ash.Changeset':manage_relationship/4"
                        }
                    ],
                    "repo": "https://github.com/ash-project/ash",
                    "vendor": "ash-project",
                    "versions": [
                        {
                            "lessThan": "3.31.1",
                            "status": "affected",
                            "version": "1.52.0-rc.11",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "collectionURL": "https://github.com",
                    "cpes": [
                        "cpe:2.3:a:ash-project:ash:*:*:*:*:*:*:*:*"
                    ],
                    "defaultStatus": "unaffected",
                    "modules": [
                        "'Elixir.Ash.Actions.ManagedRelationships'",
                        "'Elixir.Ash.Changeset'"
                    ],
                    "packageName": "ash-project/ash",
                    "packageURL": "pkg:github/ash-project/ash",
                    "product": "ash",
                    "programFiles": [
                        "lib/ash/actions/managed_relationships.ex",
                        "lib/ash/changeset/changeset.ex"
                    ],
                    "programRoutines": [
                        {
                            "name": "'Elixir.Ash.Actions.ManagedRelationships':setup_managed_belongs_to_relationships/3"
                        },
                        {
                            "name": "'Elixir.Ash.Changeset':manage_relationship/4"
                        }
                    ],
                    "repo": "https://github.com/ash-project/ash",
                    "vendor": "ash-project",
                    "versions": [
                        {
                            "lessThan": "09f42593035bceb0f6153dd7ee45cc49d108300a",
                            "status": "affected",
                            "version": "571c138140e71cea24005189f45d7a63c8d2ed20",
                            "versionType": "git"
                        }
                    ]
                }
            ],
            "configurations": [
                {
                    "lang": "en",
                    "supportingMedia": [
                        {
                            "base64": false,
                            "type": "text/html",
                            "value": "<p>A <code>belongs_to</code> relationship must be managed with <code>manage_relationship</code> using <code>on_lookup: :relate</code>, and the lookup value must come from client input.</p>"
                        },
                        {
                            "base64": false,
                            "type": "text/markdown",
                            "value": "A `belongs_to` relationship must be managed with `manage_relationship` using `on_lookup: :relate`, and the lookup value must come from client input."
                        }
                    ],
                    "value": "A belongs_to relationship must be managed with manage_relationship using on_lookup: :relate, and the lookup value must come from client input."
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "cpeMatch": [
                                {
                                    "criteria": "cpe:2.3:a:ash-project:ash:*:*:*:*:*:*:*:*",
                                    "versionEndExcluding": "3.31.1",
                                    "versionStartIncluding": "1.52.0-rc.11",
                                    "vulnerable": true
                                }
                            ],
                            "negate": false,
                            "operator": "OR"
                        }
                    ],
                    "operator": "AND"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "type": "finder",
                    "value": "Jisung Chae"
                },
                {
                    "lang": "en",
                    "type": "remediation developer",
                    "value": "Zach Daniel"
                },
                {
                    "lang": "en",
                    "type": "analyst",
                    "value": "Jonatan Männchen / EEF"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "supportingMedia": [
                        {
                            "base64": false,
                            "type": "text/html",
                            "value": "<p>Improper Neutralization of Special Elements in Data Query Logic vulnerability in ash-project ash allows an attacker to forge a relationship to a record they cannot name, and to recover the secret value used to look it up.</p>\n<p>When <code>manage_relationship</code> is used with <code>on_lookup: :relate</code> on a <code>belongs_to</code> relationship, the client-supplied lookup value is passed to <code>Ash.Query.filter/2</code> without being cast to the attribute type. A nested map submitted where a scalar is expected is therefore interpreted as a filter predicate rather than a literal, so a lookup for a specific record becomes a query for any record matching a condition. The same path omits <code>Ash.Query.limit(1)</code>, leaving <code>Ash.read_one/2</code> able to distinguish no match from one match from several, which turns comparison predicates into an oracle for the lookup value. Authorization is unaffected; the destination read policy still applies.</p>\n<p>This issue affects ash: from 1.52.0-rc.11 before 3.31.1.</p>"
                        },
                        {
                            "base64": false,
                            "type": "text/markdown",
                            "value": "Improper Neutralization of Special Elements in Data Query Logic vulnerability in ash-project ash allows an attacker to forge a relationship to a record they cannot name, and to recover the secret value used to look it up.\n\nWhen `manage_relationship` is used with `on_lookup: :relate` on a `belongs_to` relationship, the client-supplied lookup value is passed to `Ash.Query.filter/2` without being cast to the attribute type. A nested map submitted where a scalar is expected is therefore interpreted as a filter predicate rather than a literal, so a lookup for a specific record becomes a query for any record matching a condition. The same path omits `Ash.Query.limit(1)`, leaving `Ash.read_one/2` able to distinguish no match from one match from several, which turns comparison predicates into an oracle for the lookup value. Authorization is unaffected; the destination read policy still applies.\n\nThis issue affects ash: from 1.52.0-rc.11 before 3.31.1."
                        }
                    ],
                    "value": "Improper Neutralization of Special Elements in Data Query Logic vulnerability in ash-project ash allows an attacker to forge a relationship to a record they cannot name, and to recover the secret value used to look it up.\n\nWhen manage_relationship is used with on_lookup: :relate on a belongs_to relationship, the client-supplied lookup value is passed to Ash.Query.filter/2 without being cast to the attribute type. A nested map submitted where a scalar is expected is therefore interpreted as a filter predicate rather than a literal, so a lookup for a specific record becomes a query for any record matching a condition. The same path omits Ash.Query.limit(1), leaving Ash.read_one/2 able to distinguish no match from one match from several, which turns comparison predicates into an oracle for the lookup value. Authorization is unaffected; the destination read policy still applies.\n\nThis issue affects ash: from 1.52.0-rc.11 before 3.31.1."
                }
            ],
            "impacts": [
                {
                    "capecId": "CAPEC-116",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-116 Excavation"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "attackComplexity": "LOW",
                        "attackRequirements": "PRESENT",
                        "attackVector": "LOCAL",
                        "baseScore": 2.1,
                        "baseSeverity": "LOW",
                        "privilegesRequired": "NONE",
                        "providerUrgency": "NOT_DEFINED",
                        "subAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "userInteraction": "NONE",
                        "valueDensity": "NOT_DEFINED",
                        "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N",
                        "version": "4.0",
                        "vulnAvailabilityImpact": "NONE",
                        "vulnConfidentialityImpact": "LOW",
                        "vulnIntegrityImpact": "LOW",
                        "vulnerabilityResponseEffort": "NOT_DEFINED"
                    },
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ]
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-943",
                            "description": "CWE-943 Improper Neutralization of Special Elements in Data Query Logic",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
                "shortName": "EEF",
                "dateUpdated": "2026-08-09T18:17:07.321Z"
            },
            "references": [
                {
                    "tags": [
                        "related",
                        "vendor-advisory"
                    ],
                    "url": "https://github.com/ash-project/ash/security/advisories/GHSA-vvp6-3wv6-833j"
                },
                {
                    "tags": [
                        "related"
                    ],
                    "url": "https://cna.erlef.org/cves/CVE-2026-70395.html"
                },
                {
                    "tags": [
                        "related"
                    ],
                    "url": "https://osv.dev/vulnerability/EEF-CVE-2026-70395"
                },
                {
                    "tags": [
                        "patch"
                    ],
                    "url": "https://github.com/ash-project/ash/commit/09f42593035bceb0f6153dd7ee45cc49d108300a"
                }
            ],
            "source": {
                "discovery": "EXTERNAL"
            },
            "title": "Predicate injection in manage_relationship belongs_to lookup discloses secret lookup keys in Ash"
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-08-10T15:56:57.175785Z",
                                "id": "CVE-2026-70395",
                                "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": "2026-08-10T18:23:15.009Z"
                }
            }
        ]
    }
}