Vulnerability-Lookup

GHSA-CVF2-GH5F-V69P

Vulnerability from github – Published: 2026-08-07 18:31 – Updated: 2026-08-07 18:31

Details

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.

Severity

8.7 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

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{
  "affected": [],
  "aliases": [
    "CVE-2026-67585"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-770"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-07T17:17:06Z",
    "severity": "HIGH"
  },
  "details": "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.\n\nEvery 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.\n\nThis issue affects absinthe_federation: from 0.1.0 before 0.9.3.",
  "id": "GHSA-cvf2-gh5f-v69p",
  "modified": "2026-08-07T18:31:45Z",
  "published": "2026-08-07T18:31:45Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/DivvyPayHQ/absinthe_federation/security/advisories/GHSA-55hv-mwvr-phf3"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-67585"
    },
    {
      "type": "WEB",
      "url": "https://github.com/DivvyPayHQ/absinthe_federation/commit/c3838cda2a7f65c4893291668c223b0d6acf4516"
    },
    {
      "type": "WEB",
      "url": "https://cna.erlef.org/cves/CVE-2026-67585.html"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-67585"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/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",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-67585 (GCVE-0-2026-67585)

Vulnerability from cvelistv5 – Published: 2026-08-07 16:42 – Updated: 2026-08-07 18:12

Title

Atom Exhaustion via _entities Representation Keys in DivvyPayHQ absinthe_federation

Summary

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.

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-07 18:12 UTC

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

EEF mitre root

References

4 references

URL	Tags
https://github.com/DivvyPayHQ/absinthe_federation…	vendor-advisoryrelated
https://cna.erlef.org/cves/CVE-2026-67585.html	related
https://osv.dev/vulnerability/EEF-CVE-2026-67585	related
https://github.com/DivvyPayHQ/absinthe_federation…	patch

Impacted products

2 products

Vendor	Product	Version
DivvyPayHQ	absinthe_federation	Affected: 0.1.0 , < 0.9.3 (semver) cpe:2.3:a:divvypayhq:absinthe_federation::::::::
DivvyPayHQ	absinthe_federation	Affected: 640a234a26b2d6fe5d9d21e00e5f4fce5645c0bf , < c3838cda2a7f65c4893291668c223b0d6acf4516 (git) cpe:2.3:a:divvypayhq:absinthe_federation::::::::

Credits

Peter Ullrich Doruk Gurleyen Jonatan Männchen / EEF

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-67585",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-07T18:12:41.815038Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-07T18:12:59.050Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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        {
          "collectionURL": "https://repo.hex.pm",
          "cpes": [
            "cpe:2.3:a:divvypayhq:absinthe_federation:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "\u0027Elixir.Absinthe.Federation.Schema.EntitiesField\u0027"
          ],
          "packageName": "absinthe_federation",
          "packageURL": "pkg:hex/absinthe_federation",
          "product": "absinthe_federation",
          "programFiles": [
            "lib/absinthe/federation/schema/entities_field.ex"
          ],
          "programRoutines": [
            {
              "name": "\u0027Elixir.Absinthe.Federation.Schema.EntitiesField\u0027:resolver/3"
            },
            {
              "name": "\u0027Elixir.Absinthe.Federation.Schema.EntitiesField\u0027:convert_keys_to_atom/2"
            },
            {
              "name": "\u0027Elixir.Absinthe.Federation.Schema.EntitiesField\u0027:convert_key/2"
            }
          ],
          "repo": "https://github.com/DivvyPayHQ/absinthe_federation",
          "vendor": "DivvyPayHQ",
          "versions": [
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              "version": "0.1.0",
              "versionType": "semver"
            }
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        {
          "collectionURL": "https://github.com",
          "cpes": [
            "cpe:2.3:a:divvypayhq:absinthe_federation:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "\u0027Elixir.Absinthe.Federation.Schema.EntitiesField\u0027"
          ],
          "packageName": "DivvyPayHQ/absinthe_federation",
          "packageURL": "pkg:github/DivvyPayHQ/absinthe_federation",
          "product": "absinthe_federation",
          "programFiles": [
            "lib/absinthe/federation/schema/entities_field.ex"
          ],
          "programRoutines": [
            {
              "name": "\u0027Elixir.Absinthe.Federation.Schema.EntitiesField\u0027:resolver/3"
            },
            {
              "name": "\u0027Elixir.Absinthe.Federation.Schema.EntitiesField\u0027:convert_keys_to_atom/2"
            },
            {
              "name": "\u0027Elixir.Absinthe.Federation.Schema.EntitiesField\u0027:convert_key/2"
            }
          ],
          "repo": "https://github.com/DivvyPayHQ/absinthe_federation",
          "vendor": "DivvyPayHQ",
          "versions": [
            {
              "lessThan": "c3838cda2a7f65c4893291668c223b0d6acf4516",
              "status": "affected",
              "version": "640a234a26b2d6fe5d9d21e00e5f4fce5645c0bf",
              "versionType": "git"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:divvypayhq:absinthe_federation:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "0.1.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
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          "operator": "AND"
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      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Peter Ullrich"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Doruk Gurleyen"
        },
        {
          "lang": "en",
          "type": "analyst",
          "value": "Jonatan M\u00e4nnchen / EEF"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eAllocation of Resources Without Limits or Throttling vulnerability in DivvyPayHQ absinthe_federation allows an unauthenticated remote attacker to abort the Erlang VM via crafted \u003ccode\u003e_entities\u003c/code\u003e representation keys.\u003c/p\u003e\n\u003cp\u003eEvery key of every object in the \u003ccode\u003erepresentations\u003c/code\u003e argument of the federation-mandated \u003ccode\u003e_entities\u003c/code\u003e field is converted with \u003ccode\u003eString.to_atom/1\u003c/code\u003e by \u003ccode\u003econvert_key/2\u003c/code\u003e in \u003ccode\u003elib/absinthe/federation/schema/entities_field.ex\u003c/code\u003e. \u003ccode\u003erepresentations\u003c/code\u003e is typed as the open-ended \u003ccode\u003e_Any\u003c/code\u003e 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.\u003c/p\u003e\n\u003cp\u003eThis issue affects absinthe_federation: from 0.1.0 before 0.9.3.\u003c/p\u003e"
            },
            {
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              "value": "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.\n\nEvery 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.\n\nThis issue affects absinthe_federation: from 0.1.0 before 0.9.3."
            }
          ],
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        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-130",
          "descriptions": [
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      "metrics": [
        {
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            "Recovery": "NOT_DEFINED",
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            "attackVector": "NETWORK",
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            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
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            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
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          "scenarios": [
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              "type": "CWE"
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          ]
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      "providerMetadata": {
        "dateUpdated": "2026-08-07T16:42:22.653Z",
        "orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "shortName": "EEF"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory",
            "related"
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          "url": "https://github.com/DivvyPayHQ/absinthe_federation/security/advisories/GHSA-55hv-mwvr-phf3"
        },
        {
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          ],
          "url": "https://cna.erlef.org/cves/CVE-2026-67585.html"
        },
        {
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        }
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      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Atom Exhaustion via _entities Representation Keys in DivvyPayHQ absinthe_federation"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
    "assignerShortName": "EEF",
    "cveId": "CVE-2026-67585",
    "datePublished": "2026-08-07T16:42:22.653Z",
    "dateReserved": "2026-08-07T10:15:01.514Z",
    "dateUpdated": "2026-08-07T18:12:59.050Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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GHSA-CVF2-GH5F-V69P

CVE-2026-67585 (GCVE-0-2026-67585)

Tags

Sightings

Nomenclature

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