Signal is active with 1 mentions in latest observed window
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NVD description
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.
Priority
LOW
Exploitation
NONE
PoC
YES
Patch
AVAILABLE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
⚡ CVE-2026-34593 (Ash.Type.Module.cast_input/2 Elixir): High atom exhaustion via unchecked Module.concat—BEAM VM crash DoS. Patch: Ash update https://www.tenable.com/cve/newest https://nvd.nist.gov/vuln/detail/CVE-2026-34593 https://hex.pm/packages/ash
Post summary
CVE‑2026‑34593 leads to a BEAM VM crash through atom exhaustion; a patch is available via an Ash update.
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| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | ash-hq | ash_framework | - | - | - |