Allocation of Resources Without Limits or Throttling vulnerability in ash-project ashtypescript allows an unauthenticated attacker to exhaust the BEAM atom table and abort the node via client-supplied typed struct field names.

resolvetypedstructfield/2 in lib/ashtypescript/rpc/fieldprocessing/fieldselector.ex looks a client-supplied field name up in the typed struct's reverse map and, when it finds no match, falls back to String.toatom/1. Because this runs before any field-existence check, an unresolvable name mints a permanent atom rather than being rejected as unknown. Atoms are never garbage collected, so a request carrying many distinct names on a typed struct field grows the atom table until the VM aborts at its limit.

This issue affects ashtypescript: from 0.11.0 before 0.18.0.