Identity tool filter in AshAi accepts operator maps, allowing update or destroy of unidentified records

{
  "id": "4ee9ff1e058109fe5eac0a09a6f801f24c6dfbd06e2c015535daa650f75a3c5c",
  "url": "https://osv.dev/vulnerability/CVE-2026-82564",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Identity tool filter in AshAi accepts operator maps, allowing update or destroy of unidentified records",
    "summary": "Authorization Bypass Through User-Controlled Key vulnerability in ash-project ash_ai allows a caller of an identity-configured tool to update or destroy records it never identified, including every row in the table. In AshAi.Tool.Execution, identity_filter/3 built the update/destroy filter directly from the raw tool arguments as [{key, Map.get(arguments, to_string(key))}] and passed it to Ash.Query.do_filter/2. A map value is parsed as a predicate expression rather than a literal, so a caller can send {\"public_ref\": {\"not_eq\": \"\"}} and, combined with Ash.Query.limit(1) and Ash.bulk_update!/Ash.bulk_destroy!, retarget the write at a record it never identified; an omitted key yields an IS NULL filter that matches an arbitrary row. The fix casts each identity value to the field type, rejecting non-scalar inputs. This issue affects ash_ai: from 0.6.0 before 1.0.0.",
    "evidence": "osv:CVE-2026-82564",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-82564",
      "aliases": [
        "CVE-2026-82564",
        "EEF-CVE-2026-82564",
        "GHSA-jg86-xh36-h5xc"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/ash-project/ash_ai",
              "type": "GIT",
              "events": [
                {
                  "introduced": "bc2122f78fca6c11d8ec2b9ac53148ec17476460"
                },
                {
                  "fixed": "87f616d5bfbf7af43346f0701ae17f853789a602"
                },
                {
                  "introduced": "c31e6f4b619d9e6f79088fdf4f2a3463941137a6"
                },
                {
                  "fixed": "f72b14744996e71df6d73480d617d963f340597b"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "bc2122f78fca6c11d8ec2b9ac53148ec17476460"
                      },
                      {
                        "fixed": "87f616d5bfbf7af43346f0701ae17f853789a602"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0.6.0"
                      },
                      {
                        "fixed": "1.0.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "fixed": "87f616d5bfbf7af43346f0701ae17f853789a602"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.8.2",
            "v0.8.1",
            "v0.8.0",
            "v0.7.3",
            "v0.7.2",
            "v0.7.1",
            "v0.7.0",
            "v0.6.1",
            "v0.6.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82564.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:28.897018405Z",
      "provider": "osv",
      "references": [
        "https://cna.erlef.org/cves/CVE-2026-82564.html",
        "https://github.com",
        "https://osv.dev/vulnerability/EEF-CVE-2026-82564",
        "https://repo.hex.pm",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82564.json",
        "https://github.com/ash-project/ash_ai/security/advisories/GHSA-jg86-xh36-h5xc",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-82564",
        "https://github.com/ash-project/ash_ai/commit/87f616d5bfbf7af43346f0701ae17f853789a602",
        "https://github.com/ash-project/ash_ai"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-639"
        ],
        "cna_assigner": "EEF",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82564.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-82564",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 495778,
  "published_at": "2026-08-31T01:06:00.526+00:00"
}