CVE-2026-67585 Details
Description
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.
A resource exhaustion vulnerability has been identified in the DivvyPayHQ absinthe_federation package, specifically in versions 0.1.0 prior to 0.9.3. This vulnerability allows an unauthenticated remote attacker to crash the Erlang virtual machine by sending requests with specially crafted keys in the _entities representation. The vulnerability arises because the _entities field accepts arbitrary keys that bypass schema validation. These keys are converted into atoms, which are permanent and not garbage collected. The atom table in the BEAM environment has a hard limit of about 1,048,576 entries, so a single request with tens of thousands of unique keys can exhaust this limit, causing the node to crash. The issue impacts the application's availability, requiring a restart to recover.
Users can upgrade to absinthe_federation version 0.9.3 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No CVSS 3.x data is available for this CVE.
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Aug 7, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-770 | Allocation of Resources Without Limits or Throttling | EEF |
Affected Products
No affected product data is available for this CVE.
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 7, 2026 | CVE Modified | CISA-ADP |
| Aug 7, 2026 | New CVE Received | EEF |