CVE-2026-34593

Ash Framework is a declarative, extensible framework for building Elixir applications. Prior to version 3.22.0, Ash.Type.Module.cast_input/2 unconditionally creates a new Erlang atom via Module.concat([value]) for any user-supplied binary string that starts with "Elixir.", before verifying whether the referenced module exists. Because Erlang atoms are never garbage-collected and the BEAM atom table has a hard default limit of approximately 1,048,576 entries, an attacker who can submit values to any resource attribute or argument of type :module can exhaust this table and crash the entire BEAM VM, taking down the application. This issue has been patched in version 3.22.0.

The following products are affected by CVE-2026-34593 vulnerability.

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Here, you will find a curated list of external links that provide in-depth information to CVE-2026-34593.

URL	Resource
https://github.com/ash-project/ash/releases/tag/v3.22.0
https://github.com/ash-project/ash/security/advisories/GHSA-jjf9-w5vj-r6vp