CVE-2026-8469
Gravedad CVSS v4.0:
ALTA
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
20/05/2026
Última modificación:
20/05/2026
Descripción
*** Pendiente de traducción *** Allocation of Resources Without Limits or Throttling vulnerability in phenixdigital phoenix_storybook allows unauthenticated denial-of-service via BEAM atom table exhaustion.<br />
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Multiple LiveView event handlers convert user-supplied event parameter strings to atoms using String.to_atom/1 without validation: &#39;Elixir.PhoenixStorybook.ExtraAssignsHelpers&#39;:handle_set_variation_assign/3 interns every key of the psb-assign params map; &#39;Elixir.PhoenixStorybook.ExtraAssignsHelpers&#39;:handle_toggle_variation_assign/3 interns the "attr" value from psb-toggle events; &#39;Elixir.PhoenixStorybook.ExtraAssignsHelpers&#39;:to_variation_id/2 interns elements of "variation_id"; and &#39;Elixir.PhoenixStorybook.ExtraAssignsHelpers&#39;:to_value/4 interns raw string values for attributes declared as :atom or :boolean. BEAM atoms are never garbage-collected, so each unique attacker-controlled string is a permanent allocation. Once the atom table ceiling (~1,048,576 atoms) is reached, the entire BEAM node aborts, taking down all applications running on it.<br />
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This issue affects phoenix_storybook from 0.2.0 before 1.1.0.
Impacto
Puntuación base 4.0
8.20
Gravedad 4.0
ALTA