{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "1.52.0-rc.11"
              },
              {
                "fixed": "3.31.1"
              }
            ],
            "source": [
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "174de6131eba5d5d1b58213860968ce1fcaf3ad6"
            },
            {
              "fixed": "f3725ffd482598d2cd7a1e5c3fd27d3c117891d7"
            },
            {
              "fixed": "09f42593035bceb0f6153dd7ee45cc49d108300a"
            }
          ],
          "repo": "https://github.com/ash-project/ash",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-vvp6-3wv6-833j"
  ],
  "database_specific": {
    "cna_assigner": "EEF",
    "cwe_ids": [
      "CWE-943"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/70xxx/CVE-2026-70395.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "571c138140e71cea24005189f45d7a63c8d2ed20"
          },
          {
            "fixed": "09f42593035bceb0f6153dd7ee45cc49d108300a"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "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.",
  "id": "CVE-2026-70395",
  "modified": "2026-08-14T11:36:56.450933466Z",
  "published": "2026-08-09T18:17:07.321Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://cna.erlef.org/cves/CVE-2026-70395.html"
    },
    {
      "type": "WEB",
      "url": "https://github.com"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-70395"
    },
    {
      "type": "WEB",
      "url": "https://repo.hex.pm"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/70xxx/CVE-2026-70395.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/ash-project/ash/security/advisories/GHSA-vvp6-3wv6-833j"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-70395"
    },
    {
      "type": "FIX",
      "url": "https://github.com/ash-project/ash/commit/09f42593035bceb0f6153dd7ee45cc49d108300a"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ash-project/ash"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Predicate injection in manage_relationship belongs_to lookup discloses secret lookup keys in Ash"
}