{"id":"CVE-2026-78230","summary":"AshAi aggregate tool can read field-policy-protected fields","details":"AshAi exposes Ash read actions to language-model tool calls. The read tool accepts an aggregate result type (min, max, 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 tool caller could therefore read a field the calling actor's field policies forbid by requesting it as an aggregate; min/max in particular return an actual field value. This includes fields that are public? true but restricted per-actor by a field policy, such as sensitive PII. The tool's existing check only required the field to be public, 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_ai: from 0.1.0 before 1.0.3.","aliases":["EEF-CVE-2026-78230","GHSA-v5rw-36x5-r5vx"],"modified":"2026-09-10T03:48:26.401457011Z","published":"2026-09-08T16:41:45.975Z","database_specific":{"cna_assigner":"EEF","cwe_ids":["CWE-1220"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/78xxx/CVE-2026-78230.json","unresolved_ranges":[{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0.1.0"},{"fixed":"1.0.3"},{"introduced":"2ba234b50946a3b8116190c8467f9f4dfa5edce7"},{"fixed":"9c02de581625c342c9870a672830bff28c1d701e"}]},{"extracted_events":[{"introduced":"0.1.0"},{"fixed":"1.0.3"}],"source":"CPE_FIELD"},{"extracted_events":[{"introduced":"0.1.0"},{"fixed":"1.0.3"}],"source":"DESCRIPTION"}]},"references":[{"type":"WEB","url":"https://cna.erlef.org/cves/CVE-2026-78230.html"},{"type":"WEB","url":"https://github.com"},{"type":"WEB","url":"https://osv.dev/vulnerability/EEF-CVE-2026-78230"},{"type":"WEB","url":"https://repo.hex.pm"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/78xxx/CVE-2026-78230.json"},{"type":"ADVISORY","url":"https://github.com/ash-project/ash_ai/security/advisories/GHSA-v5rw-36x5-r5vx"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-78230"},{"type":"FIX","url":"https://github.com/ash-project/ash_ai/commit/2ba234b50946a3b8116190c8467f9f4dfa5edce7"},{"type":"FIX","url":"https://github.com/ash-project/ash_ai/commit/9c02de581625c342c9870a672830bff28c1d701e"},{"type":"PACKAGE","url":"https://github.com/ash-project/ash_ai"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/ash-project/ash_ai","events":[{"introduced":"0"},{"fixed":"2ba234b50946a3b8116190c8467f9f4dfa5edce7"},{"fixed":"9c02de581625c342c9870a672830bff28c1d701e"}],"database_specific":{"source":"REFERENCES"}}],"versions":["v1.0.2","v1.0.1","v1.0.0","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","v0.5.0","v0.4.0","v0.3.0","v0.2.14","v0.2.13","v0.2.12","v0.2.11","v0.2.10","v0.2.9","v0.2.8","v0.2.7","v0.2.6","v0.2.5","v0.2.4","v0.2.3","v0.2.2","v0.2.1","v0.1.11","v0.1.10","v0.1.9","v0.1.8","v0.1.7","v0.1.6","v0.1.5","v0.1.4","v0.1.3","v0.1.2","v0.1.1","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-78230.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}