{"timestamp":"2026-08-07T18:12:41.815038Z","id":"CVE-2026-67585","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}

Allocation of Resources Without Limits or Throttling vulnerability in DivvyPayHQ absinthe_federation allows an unauthenticated remote attacker to abort the Erlang VM via crafted _entities representation keys.

Every key of every object in the representations argument of the federation-mandated _entities field is converted with String.to_atom/1 by convert_key/2 in lib/absinthe/federation/schema/entities_field.ex. representations is typed as the open-ended _Any scalar, so its keys bypass schema coercion and the attacker names them freely. Atoms are never garbage collected and the BEAM atom table is hard-capped (about 1,048,576 entries by default), so one request carrying tens of thousands of unique keys creates that many permanent atoms and a handful of such requests exhausts the table and aborts the node. The impact is confined to availability: no data is read or altered, and recovery requires restarting the application.

This issue affects absinthe_federation: from 0.1.0 before 0.9.3.

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CWE-770

https://cna.erlef.org/cves/CVE-2026-67585.html

https://github.com/DivvyPayHQ/absinthe_federation/commit/c3838cda2a7f65c4893291668c223b0d6acf4516

https://github.com/DivvyPayHQ/absinthe_federation/security/advisories/GHSA-55hv-mwvr-phf3

https://osv.dev/vulnerability/EEF-CVE-2026-67585

[{"vendor":"DivvyPayHQ","product":"absinthe_federation","defaultStatus":"unaffected","collectionURL":"https://repo.hex.pm","packageName":"absinthe_federation","cpes":["cpe:2.3:a:divvypayhq:absinthe_federation:*:*:*:*:*:*:*:*"],"modules":["'Elixir.Absinthe.Federation.Schema.EntitiesField'"],"programFiles":["lib/absinthe/federation/schema/entities_field.ex"],"programRoutines":[{"name":"'Elixir.Absinthe.Federation.Schema.EntitiesField':resolver/3"},{"name":"'Elixir.Absinthe.Federation.Schema.EntitiesField':convert_keys_to_atom/2"},{"name":"'Elixir.Absinthe.Federation.Schema.EntitiesField':convert_key/2"}],"repo":"https://github.com/DivvyPayHQ/absinthe_federation","packageURL":"pkg:hex/absinthe_federation","versions":[{"version":"0.1.0","lessThan":"0.9.3","versionType":"semver","status":"affected"}]},{"vendor":"DivvyPayHQ","product":"absinthe_federation","defaultStatus":"unaffected","collectionURL":"https://github.com","packageName":"DivvyPayHQ/absinthe_federation","cpes":["cpe:2.3:a:divvypayhq:absinthe_federation:*:*:*:*:*:*:*:*"],"modules":["'Elixir.Absinthe.Federation.Schema.EntitiesField'"],"programFiles":["lib/absinthe/federation/schema/entities_field.ex"],"programRoutines":[{"name":"'Elixir.Absinthe.Federation.Schema.EntitiesField':resolver/3"},{"name":"'Elixir.Absinthe.Federation.Schema.EntitiesField':convert_keys_to_atom/2"},{"name":"'Elixir.Absinthe.Federation.Schema.EntitiesField':convert_key/2"}],"repo":"https://github.com/DivvyPayHQ/absinthe_federation","packageURL":"pkg:github/DivvyPayHQ/absinthe_federation","versions":[{"version":"640a234a26b2d6fe5d9d21e00e5f4fce5645c0bf","lessThan":"c3838cda2a7f65c4893291668c223b0d6acf4516","versionType":"git","status":"affected"}]}]