CVE-2026-82586

High

Description

Improper Protection of Alternate Path vulnerability in ash-project ash_lua allows a user-supplied Lua script to read attributes that are not on the exposed-field allow-list. AshLua exposes Ash resources to Lua scripts, gated by a manifest declaring which fields are exposed. The read action's operation aggregate path in AshLua.Runtime took the field name straight from the Lua call and resolved it with only String.to_existing_atom and Ash.Query.Aggregate.new!, neither of which consults the exposed-field allow-list the normal fields path enforces. A script can therefore read the value of any attribute of any record the actor may read, including private sensitive?: true columns, via resource.read({ operation = {"list", "hashed_password"} }); min and max give a value oracle. Anyone able to submit or influence a Lua script can reach this. This issue affects ash_lua: from 0.1.0 before 0.2.1.

SeverityHigh
CVSS8.2
Exploit probability—
ProductAsh-project Ash Lua
PublishedSep 7, 2026
First seenSep 7, 2026
Weakness typeCWE-424CWE-424

How to fix

Update
  • ash-project ash_lua0.2.1, c0dfcd9494766d548178c37df0bd01cff378e1c7 or later

Affected products

ProductAffected versionsFixed in
ash-project ash_lua0.1.0 ≤ v < 0.2.1, 8675e47cca81f36594083a7e63379bac9e123e72 ≤ v < c0dfcd9494766d548178c37df0bd01cff378e1c70.2.1, c0dfcd9494766d548178c37df0bd01cff378e1c7

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