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.

• CWE-400
• CWE-770

• https://github.com/ash-project/ash/releases/tag/v3.22.0Product, Release Notes
• https://github.com/ash-project/ash/security/advisories/GHSA-jjf9-w5vj-r6vpExploit, Vendor Advisory
• https://github.com/ash-project/ash/security/advisories/GHSA-jjf9-w5vj-r6vpExploit, Vendor Advisory

Published

Apr 2, 2026

Last Modified

Jul 24, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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