CVE-2026-34593

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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.

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/ash-project/ash/releases/tag/v3.22.0 Product Release Notes
https://github.com/ash-project/ash/security/advisories/GHSA-jjf9-w5vj-r6vp Exploit Vendor Advisory
https://github.com/ash-project/ash/security/advisories/GHSA-jjf9-w5vj-r6vp Exploit Vendor Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:ash-hq:ash_framework:*:*:*:*:*:*:*:*
History

24 Jul 2026, 21:10

Type Values Removed Values Added
Summary
  • (es) Ash Framework es un framework declarativo y extensible para construir aplicaciones Elixir. Antes de la versión 3.22.0, Ash.Type.Module.cast_input/2 crea incondicionalmente un nuevo átomo de Erlang a través de Module.concat([value]) para cualquier cadena binaria proporcionada por el usuario que comienza con 'Elixir.', antes de verificar si el módulo referenciado existe. Debido a que los átomos de Erlang nunca son recolectados por el recolector de basura y la tabla de átomos de BEAM tiene un límite predeterminado estricto de aproximadamente 1.048.576 entradas, un atacante que puede enviar valores a cualquier atributo de recurso o argumento de tipo :module puede agotar esta tabla y colapsar toda la VM de BEAM, derribando la aplicación. Este problema ha sido parcheado en la versión 3.22.0.

17 Jun 2026, 10:39

Type Values Removed Values Added
References () https://github.com/ash-project/ash/security/advisories/GHSA-jjf9-w5vj-r6vp - Vendor Advisory, Exploit () https://github.com/ash-project/ash/security/advisories/GHSA-jjf9-w5vj-r6vp - Exploit, Vendor Advisory

13 Apr 2026, 18:37

Type Values Removed Values Added
CPE cpe:2.3:a:ash-hq:ash_framework:*:*:*:*:*:*:*:*
CWE CWE-770
First Time Ash-hq ash Framework
Ash-hq
References () https://github.com/ash-project/ash/releases/tag/v3.22.0 - () https://github.com/ash-project/ash/releases/tag/v3.22.0 - Product, Release Notes
References () https://github.com/ash-project/ash/security/advisories/GHSA-jjf9-w5vj-r6vp - () https://github.com/ash-project/ash/security/advisories/GHSA-jjf9-w5vj-r6vp - Vendor Advisory, Exploit
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.5

03 Apr 2026, 14:16

Type Values Removed Values Added
References () https://github.com/ash-project/ash/security/advisories/GHSA-jjf9-w5vj-r6vp - () https://github.com/ash-project/ash/security/advisories/GHSA-jjf9-w5vj-r6vp -

02 Apr 2026, 18:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-04-02 18:16

Updated : 2026-07-24 21:10

NVD link : CVE-2026-34593

Mitre link : CVE-2026-34593

CVE.ORG link : CVE-2026-34593

JSON object : View

Products Affected

ash-hq

  • ash_framework
CWE
CWE-400

Uncontrolled Resource Consumption

CWE-770

Allocation of Resources Without Limits or Throttling