Disclosure 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. Ash.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. This issue affects ash: from 2.6.0 before 3.34.6.
Source-reported weakness categories
CWE-863
Source-specific records & product guidance
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NIST NVD · NVD-CVE-2026-101028
Open original source · Updated Oct 09, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
Original records & references
- NIST NVD record
- CVE Program record
- 6b3ad84c-e1a6-4bf7-a703-f496b71e49db
- 6b3ad84c-e1a6-4bf7-a703-f496b71e49db
- 6b3ad84c-e1a6-4bf7-a703-f496b71e49db
- 6b3ad84c-e1a6-4bf7-a703-f496b71e49db
- 6b3ad84c-e1a6-4bf7-a703-f496b71e49db
Repositories cited by this CVE
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- ash-project/ash CVE record citation
GitHub repository matches
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Discovery progress
0 of 3 discovery queries finished. GitHub returned 0 indexed results; 0 malformed or disallowed results were rejected.
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PUBLISHED 2026-10-09T07:17:17+00:00
MODIFIED 2026-10-09T18:17:01+00:00
INGESTED 2026-10-11T00:55:12+00:00