{"id":"CVE-2026-70395","summary":"Predicate injection in manage_relationship belongs_to lookup discloses secret lookup keys in Ash","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.","aliases":["EEF-CVE-2026-70395","GHSA-vvp6-3wv6-833j"],"modified":"2026-08-14T03:53:28.893655772Z","published":"2026-08-09T18:17:07.321Z","database_specific":{"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"}],"cna_assigner":"EEF","cwe_ids":["CWE-943"]},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/ash-project/ash","events":[{"introduced":"174de6131eba5d5d1b58213860968ce1fcaf3ad6"},{"fixed":"f3725ffd482598d2cd7a1e5c3fd27d3c117891d7"},{"fixed":"09f42593035bceb0f6153dd7ee45cc49d108300a"}],"database_specific":{"source":["DESCRIPTION","REFERENCES"],"extracted_events":[{"introduced":"1.52.0-rc.11"},{"fixed":"3.31.1"}]}}],"versions":["v3.31.0","v3.30.1","v3.30.0","v3.29.3","v3.29.2","v3.29.1","v3.29.0","v3.28.0","v3.27.8","v3.27.7","v3.27.6","v3.27.4","v3.27.3","v3.27.2","v3.27.1","v3.27.0","v3.26.0","v3.25.2","v3.25.1","v3.25.0","v3.24.7","v3.24.6","v3.24.5","v3.24.4","v3.24.3","v3.24.2","v3.24.1","v3.24.0","v3.23.1","v3.23.0","v3.22.2","v3.22.1","v3.22.0","v3.21.3","v3.21.2","v3.21.1","v3.21.0","v3.20.0","v3.19.3","v3.19.2","v3.19.1","v3.19.0","v3.18.0","v3.17.1","v3.17.0","v3.16.0","v3.15.0","v3.14.1","v3.14.0","v3.13.2","v3.13.1","v3.13.0","v3.12.0","v3.11.3","v3.11.2","v3.11.1","v3.11.0","v3.10.1","v3.10.0","v3.9.0","v3.8.0","v3.7.6","v3.7.5","v3.7.4","v3.7.3","v3.7.2","v3.7.1","v3.7.0","v3.6.3","v3.6.2","v3.6.1","v3.6.0","v3.5.43","v3.5.42","v3.5.41","v3.5.39","v3.5.38","v3.5.37","v3.5.36","v3.5.35","v3.5.33","v3.5.32","v3.5.31","v3.5.30","v3.5.29","v3.5.28","v3.5.27","v3.5.26","v3.5.25","v3.5.24","v3.5.23","v3.5.22","v3.5.21","v3.5.19","v3.5.18","v3.5.17","v3.5.16","v3.5.15","v3.5.14","v3.5.13","v3.5.12","v3.5.11","v3.5.10","v3.5.8","v3.5.7","v3.5.6","v3.5.5","v3.5.4","v3.5.3","v3.5.2","v3.5.1","v3.4.73","v3.4.72","v3.4.71","v3.4.70","v3.4.69","v3.4.68","v3.4.67","v3.4.66","v3.4.65","v3.4.64","v3.4.63","v3.4.62","v3.4.61","v3.4.59","v3.4.58","v3.4.57","v3.4.56","3.4.56","v3.4.55","v3.4.54","v3.4.53","v3.4.51","v3.4.50","v3.4.48","v3.4.47","v3.4.46","v3.4.45","v3.4.44","v3.4.43","v3.4.42","v3.4.41","v3.4.40","v3.4.39","v3.4.38","v3.4.37","v3.4.36","v3.4.35","v3.4.34","v3.4.33","v3.4.32","v3.4.31","v3.4.30","v3.4.29","v3.4.28","v3.4.27","v3.4.26","v3.4.25","v3.4.24","v3.4.23","v3.4.21","v3.4.20","v3.4.19","v3.4.18","v3.4.17","v3.4.16","v3.4.15","v3.4.14","v3.4.13","v3.4.12","v3.4.11","v3.4.10","v3.4.9","v3.4.8","v3.4.7","v3.4.6","v3.4.5","v3.4.4","v3.4.3","v3.4.2","v3.4.1","v3.3.3","v3.3.2","v3.3.1","v3.3.0","v3.2.6","v3.2.5","v3.2.4","v3.2.3","v3.2.2","v3.2.1","v3.1.8","v3.1.7","v3.1.6","v3.1.5","v3.1.1","v3.0.16","v3.0.15","v3.0.14","v3.0.13","v3.0.12","v3.0.11","v3.0.10","v3.0.9","v3.0.8","v3.0.7","v3.0.6","v3.0.5","v3.0.4","v3.0.3","3.0.3","v3.0.2","v3.0.1","v3.0.0-rc.46","v3.0.0-rc.45","v3.0.0-rc.44","v3.0.0-rc.43","v3.0.0-rc.42","v3.0.0-rc.41","v3.0.0-rc.40","v3.0.0-rc.38","v3.0.0-rc.37","v3.0.0-rc.36","v3.0.0-rc.35","v3.0.0-rc.34","v3.0.0-rc.33","v3.0.0-rc.32","v3.0.0-rc.31","v3.0.0-rc.30","v3.0.0-rc.29","v3.0.0-rc.27","v3.0.0-rc.26","v3.0.0-rc.25","v3.0.0-rc.24","v3.0.0-rc.23","v3.0.0-rc.22","v3.0.0-rc.21","v3.0.0-rc.20","v3.0.0-rc.19","v3.0.0-rc.18","v3.0.0-rc.17","v3.0.0-rc.16","v3.0.0-rc.15","v3.0.0-rc.14","v3.0.0-rc.13","v3.0.0-rc.12","v3.0.0-rc.11","v3.0.0-rc.10","v3.0.0-rc.9","v3.0.0-rc.8","v3.0.0-rc.7","v3.0.0-rc.6","v3.0.0-rc.5","v3.0.0-rc.4","v3.0.0-rc.3","v3.0.0-rc.2","v3.0.0-rc.1","v2.21.2","v3.0.0-rc.0","v2.21.1","v2.21.0","v2.20.3","v2.20.2","v2.20.1","v2.20.0","v2.19.14","v2.19.13","v2.19.12","v2.19.11","v2.19.10","v2.19.9","v2.19.8","v2.19.7","v2.19.6","v2.19.5","v2.19.4","v2.19.3","v2.19.2","v2.19.1","v2.19.0","v2.18.2","v2.18.1","v2.18.0","v2.17.24","v2.17.23","v2.17.22","v2.17.21","v2.17.20","v2.17.19","v2.17.18","v2.17.17","v2.17.16","v2.17.15","v2.17.14","v2.17.13","v2.17.12","v2.17.11","v2.17.10","v2.17.9","v2.17.8","v2.17.7","v2.17.6","v2.17.5","v2.17.4","v2.17.3","v2.17.2","v2.17.1","v2.17.0","v2.16.1","v2.16.0","v2.15.20","v2.15.19","v2.15.18","v2.15.17","v2.15.16","v2.15.15","v2.15.14","v2.15.13","v2.15.12","v2.15.11","v2.15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