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      <title>CVE-2026-81316 — Same-named aggregates with differing filters are conflated in AshSql</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-81316</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; ash-project ash_sql&lt;/p&gt;
&lt;p&gt;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.&lt;/p&gt;
&lt;p&gt;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&amp;#39;s value. The same name reaches the builder twice with different filters when actor or tenant context is stamped into each aggregate&amp;#39;s query, so a narrowly filtered aggregate can be served the value of a previously registered broad one.&lt;/p&gt;
&lt;p&gt;This issue affects ash_sql: from 0.1.0 before 0.7.1.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; ash-project ash_sql&lt;/p&gt;
&lt;p&gt;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.&lt;/p&gt;
&lt;p&gt;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&amp;#39;s value. The same name reaches the builder twice with different filters when actor or tenant context is stamped into each aggregate&amp;#39;s query, so a narrowly filtered aggregate can be served the value of a previously registered broad one.&lt;/p&gt;
&lt;p&gt;This issue affects ash_sql: from 0.1.0 before 0.7.1.&lt;/p&gt;</content:encoded>
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