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CVE-2026-67585— Atom Exhaustion via _entities Representation Keys in DivvyPayHQ absinthe_federation

Quick assessment

Affected
DivvyPayHQ absinthe_federation
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Divvy Absinthe.Federation是Divvy组织开源的一款整合网络数据与威胁情报的分析平台。 Divvy Absinthe.Federation 0.1.0版本至0.9.3之前版本存在资源管理错误漏洞，该漏洞源于对_entities表示键的资源分配无限制，攻击者通过特制键触发String.to_atom转换，导致BEAM原子表耗尽并中止Erlang VM，可能允许未经身份验证的远程攻击者造成拒绝服务。

CVSS 8.7 · High EPSS 0.71% · P51

Affected Version Matrix 2

VendorProduct Version RangeStatus
DivvyPayHQ absinthe_federation 0.1.0< 0.9.3 affected
640a234a26b2d6fe5d9d21e00e5f4fce5645c0bf< c3838cda2a7f65c4893291668c223b0d6acf4516 affected
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I. Basic Information for CVE-2026-67585

Vulnerability Information
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Vulnerability Title
Atom Exhaustion via _entities Representation Keys in DivvyPayHQ absinthe_federation
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5
Vulnerability Title
Divvy Absinthe.Federation 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Divvy Absinthe.Federation是Divvy组织开源的一款整合网络数据与威胁情报的分析平台。 Divvy Absinthe.Federation 0.1.0版本至0.9.3之前版本存在资源管理错误漏洞，该漏洞源于对_entities表示键的资源分配无限制，攻击者通过特制键触发String.to_atom转换，导致BEAM原子表耗尽并中止Erlang VM，可能允许未经身份验证的远程攻击者造成拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
DivvyPayHQ absinthe_federation 0.1.0 ~ 0.9.3 cpe:2.3:a:divvypayhq:absinthe_federation:*:*:*:*:*:*:*:*
DivvyPayHQ absinthe_federation 640a234a26b2d6fe5d9d21e00e5f4fce5645c0bf ~ c3838cda2a7f65c4893291668c223b0d6acf4516 cpe:2.3:a:divvypayhq:absinthe_federation:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-67585

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 13416 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
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Exploit chain & mitigation
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III. Intelligence Information for CVE-2026-67585

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Patches & Fixes for CVE-2026-67585 (1)

Vendor Advisories for CVE-2026-67585 (2)

Other References for CVE-2026-67585 (1)

IV. Related Vulnerabilities

Same weakness: CWE-770

V. Comments for CVE-2026-67585

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