Skip to content
CVE PROGRAM SOURCE RECORD8.3 High

CVE-2026-82722

AshAdmin LiveView events intern atoms from client input, exhausting the atom table (node DoS)

Description

Allocation of Resources Without Limits or Throttling vulnerability in ash-project ash_admin lets any client that can reach the admin LiveView exhaust the BEAM atom table and crash the entire node. Two LiveView event handlers interned atoms from unvalidated client input: AshAdmin.PageLive's set_actor built modules from the resource/domain payload with Module.concat/1, and AshAdmin.Components.Resource.Show's calculate converted every submitted form key with String.to_atom/1. Atoms are never garbage collected and the table is capped, so flooding either event with random names mints a new atom per request until the VM aborts, taking down every application on the node. The fix resolves the submitted resource/domain against the known shown resources and maps calculation keys to declared arguments, so no client-supplied string is interned. This issue affects ash_admin: from 0.1.0 before 1.3.1.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

ash-project ash_admin

Default version status: unaffected

  • 0.1.0 to < 1.3.1affected
pkg:hex/ash_admin

ash-project ash_admin

Default version status: unaffected

  • 98b03baa8422b94dd13e305bf08b8ee3f7232c7b to < 731dffa09416d68f4ad3a0b6ee146b285ca0083baffected
pkg:github/ash-project/ash_admin

References