Vulnerability · Published Aug 31, 2026 · Assigned by EEF
CVE-2026-82722AshAdmin LiveView events intern atoms from client input, exhausting the atom table (node DoS)
High 8.3
In plain English
A high-severity resource allocation without limits in ash_admin from ash-project. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities).
Official 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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ash-project | ash_admin | 0.1.0 – before 1.3.1 |
| ash-project | ash_admin | 98b03baa8422b94dd13e305bf08b8ee3f7232c7b – before 731dffa09416d68f4ad3a0b6ee146b285ca0083b |
Weakness: CWE-770 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
References
- https://github.com/ash-project/ash_admin/security/advisories/GHSA-wcr6-9rrw-5jhv vendor-advisory, related
- https://cna.erlef.org/cves/CVE-2026-82722.html related
- https://osv.dev/vulnerability/EEF-CVE-2026-82722 related
- https://github.com/ash-project/ash_admin/commit/731dffa09416d68f4ad3a0b6ee146b285ca0083b patch