---
id: CVE-2026-81316
title: >-
  Incorrect Authorization vulnerability in ash-project ash_sql allows a caller
  to receive an aggregate value computed over rows a more restrictive filter
  should have excluded, disclosing counts, sums, or lists across an
  authorization or te…
summary: >-
  Incorrect Authorization vulnerability in ash-project ash_sql allows a caller
  to receive an aggregate value computed over rows a more restrictive filter
  should have excluded, disclosing counts, sums, or lists across an
  authorization or te…
severity: none
cwe:
  - CWE-863
published: '2026-08-30'
updated: '2026-08-30'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-81316'
references:
  - url: 'https://cna.erlef.org/cves/CVE-2026-81316.html'
    label: 6b3ad84c-e1a6-4bf7-a703-f496b71e49db
  - url: >-
      https://github.com/ash-project/ash_sql/commit/4b95468e5434a3526571414219719c9518be6694
    label: 6b3ad84c-e1a6-4bf7-a703-f496b71e49db
  - url: >-
      https://github.com/ash-project/ash_sql/security/advisories/GHSA-v7pf-wjxc-7j5m
    label: 6b3ad84c-e1a6-4bf7-a703-f496b71e49db
  - url: 'https://osv.dev/vulnerability/EEF-CVE-2026-81316'
    label: 6b3ad84c-e1a6-4bf7-a703-f496b71e49db
tags:
  - nvd
ingestedAt: '2026-08-30T17:55:39.990Z'
epss: 0.00171
epssPercentile: 0.05679
---

## Overview

Incorrect Authorization vulnerability in ash-project ash_sql allows a caller to receive an aggregate value computed over rows a more restrictive filter should have excluded, disclosing counts, sums, or lists across an authorization or tenancy boundary.

AshSql.Aggregate.different_queries?/2 reports two aggregate queries as different only when their filter and their sort both differ. Aggregate queries rarely carry a sort, so two aggregates that share a name but carry entirely different filters compare as identical. The colliding aggregate keeps its name and is treated as already computed, and select_aggregates returns the first-registered variant's value. The same name reaches the builder twice with different filters when actor or tenant context is stamped into each aggregate's query, so a narrowly filtered aggregate can be served the value of a previously registered broad one.

This issue affects ash_sql: from 0.1.0 before 0.7.1.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.