{"id":"CVE-2026-101028","summary":"Ash.count, Ash.exists and Ash.aggregate skip related resources' read policies in filters and sorts","details":"Incorrect Authorization vulnerability in ash-project ash allows an actor to infer data in related records they cannot read via Ash.count/2, Ash.exists/2 and Ash.aggregate/3.\n\nAsh.Actions.Aggregate.run/4 (lib/ash/actions/aggregate.ex) applied only the root resource's read policy before running the aggregate query. The read path also applies each related resource's read policy to filter and sort references that cross a relationship, directly (for example comments.body) or through an aggregate over one, but the aggregate path skipped that step. A caller whose filter or sort reaches these functions, for example through Ash.Query.filter_input/2, an ash_lua script, or an AshAi tool offering count or exists results, can test conditions against related rows hidden from them and recover their existence and attribute values one query at a time. Ash.read/2 and its page counts are not affected.\n\nThis issue affects ash: from 2.6.0 before 3.34.6.","aliases":["EEF-CVE-2026-101028","GHSA-xj24-8f5c-pp5p"],"modified":"2026-10-11T02:46:16.907053030Z","published":"2026-10-09T07:01:06.470Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/101xxx/CVE-2026-101028.json","cna_assigner":"EEF","cwe_ids":["CWE-863"]},"references":[{"type":"WEB","url":"https://cna.erlef.org/cves/CVE-2026-101028.html"},{"type":"WEB","url":"https://github.com"},{"type":"WEB","url":"https://osv.dev/vulnerability/EEF-CVE-2026-101028"},{"type":"WEB","url":"https://repo.hex.pm"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/101xxx/CVE-2026-101028.json"},{"type":"ADVISORY","url":"https://github.com/ash-project/ash/security/advisories/GHSA-xj24-8f5c-pp5p"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-101028"},{"type":"FIX","url":"https://github.com/ash-project/ash/commit/30eaf1c6e8524527b703e3c4bfeff7967ee0b37c"},{"type":"FIX","url":"https://github.com/ash-project/ash/commit/80936187b27ee94f15cd875affd3141b5cb23185"},{"type":"PACKAGE","url":"https://github.com/ash-project/ash"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/ash-project/ash","events":[{"introduced":"30eaf1c6e8524527b703e3c4bfeff7967ee0b37c"},{"fixed":"80936187b27ee94f15cd875affd3141b5cb23185"},{"introduced":"8dcd5fc74090e1e1286f9790ffa58c78a5b54fcb"},{"fixed":"111f6c9c331bc4221babcf5617e3309a13f1bb08"}],"database_specific":{"extracted_events":[{"introduced":"2.6.0"},{"fixed":"3.34.6"}],"source":"AFFECTED_FIELD"}}],"versions":["v3.34.5","v3.34.4","v3.34.3","v3.34.2","v3.34.1","v3.34.0","v3.33.11","v3.33.10","v3.33.9","v3.33.7","v3.33.6","v3.33.5","v3.33.4","v3.33.3","v3.33.2","v3.33.1","v3.32.3","v3.32.2","v3.32.1","v3.31.3","v3.31.2","v3.31.1","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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