{"id":"CVE-2026-101028","title":"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) app…","summary":"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) app…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","cwe":["CWE-863"],"vendor":"Red Hat","published":"2026-10-09","updated":"2026-10-09","sourceUpdated":"2026-10-09T18:17:01.197","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-101028","references":[{"url":"https://cna.erlef.org/cves/CVE-2026-101028.html","label":"6b3ad84c-e1a6-4bf7-a703-f496b71e49db"},{"url":"https://github.com/ash-project/ash/commit/30eaf1c6e8524527b703e3c4bfeff7967ee0b37c","label":"6b3ad84c-e1a6-4bf7-a703-f496b71e49db"},{"url":"https://github.com/ash-project/ash/commit/80936187b27ee94f15cd875affd3141b5cb23185","label":"6b3ad84c-e1a6-4bf7-a703-f496b71e49db"},{"url":"https://github.com/ash-project/ash/security/advisories/GHSA-xj24-8f5c-pp5p","label":"6b3ad84c-e1a6-4bf7-a703-f496b71e49db"},{"url":"https://osv.dev/vulnerability/EEF-CVE-2026-101028","label":"6b3ad84c-e1a6-4bf7-a703-f496b71e49db"},{"url":"https://github.com/ash-project/ash/security/advisories/GHSA-xj24-8f5c-pp5p","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-101028.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-101028"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-101028"}],"tags":["nvd","csaf","vex","red-hat","cve.org","exploit-available"],"epss":0.00341,"epssPercentile":0.27449,"cvssSource":"vendor","ingestedAt":"2026-10-09T07:28:22.264Z","product":"ash","affected":["ash >= 2.6.0 < 3.34.6","ash-project/ash >= 30eaf1c6e8524527b703e3c4bfeff7967ee0b37c < 80936187b27ee94f15cd875affd3141b5cb23185"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-09T18:03:54.666261Z"},"scores":{"vendor":6.5,"cna":6},"slug":"CVE-2026-101028","body":"## Overview\n\nIncorrect 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · updated 2026-10-09 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-101028.json)","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":220629,"id":"CVE-2026-101028","ts":1792022850994,"field":"exploit_available","old":"false","new":"true"},{"seq":218416,"id":"CVE-2026-101028","ts":1791533717517,"field":"cvss","old":null,"new":"6.5"},{"seq":218415,"id":"CVE-2026-101028","ts":1791533717517,"field":"severity","old":"none","new":"medium"}]}