Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| DivvyPayHQ / absinthe_federation | affected 0.1.0 before 0.9.3 |
| DivvyPayHQ / absinthe_federation | affected 640a234a26b2d6fe5d9d21e00e5f4fce5645c0bf before c3838cda2a7f65c4893291668c223b0d6acf4516 |
CWE
CWE-770
References
- https://github.com/DivvyPayHQ/absinthe_federation/security/advisories/GHSA-55hv-mwvr-phf3
- https://cna.erlef.org/cves/CVE-2026-67585.html
- https://osv.dev/vulnerability/EEF-CVE-2026-67585
- https://github.com/DivvyPayHQ/absinthe_federation/commit/c3838cda2a7f65c4893291668c223b0d6acf4516
ADP enrichment
No English description supplied.
No references supplied.