EUVD-2026-68196Severity by source
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Network-reachable via application API; high complexity due to required same-name aggregate collision; low privileges since any application user can trigger aggregates; confidentiality impact limited to aggregate values.
Primary rating from Vendor (6b3ad84c-e1a6-4bf7-a703-f496b71e49db).
CVSS VectorVendor: 6b3ad84c-e1a6-4bf7-a703-f496b71e49db
Lifecycle Timeline
4DescriptionCVE.org
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.
AnalysisAI
Aggregate authorization bypass in ash_sql 0.1.0 through 0.7.0 allows a caller to receive aggregate data - counts, sums, or lists - computed over rows that a stricter actor- or tenant-scoped filter should have excluded. The root cause is a single-character logical operator error in AshSql.Aggregate.different_queries?/2 (AND instead of OR), causing same-named aggregates carrying different authorization filters to be treated as already-computed identical queries, returning the first-registered broader value. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an application built on Ash Framework using ash_sql for SQL execution, and specifically requires that two or more aggregate queries sharing the same name but carrying different actor- or tenant-scoped filters be registered within the same query-building context. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 2.1 (Low) accurately captures the narrow blast radius: attack requirements are present (AT:P), confidentiality impact is limited to aggregate values rather than raw rows (VC:L), and there is no integrity or availability impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade ash_sql to version 0.7.1 or later, which corrects the logical operator in AshSql.Aggregate.different_queries?/2 via commit 4b95468e5434a3526571414219719c9518be6694. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-863 – Incorrect Authorization
View allSame technique Authentication Bypass
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External POC / Exploit Code
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