CVE-2026-82722 (GCVE-0-2026-82722)
Vulnerability from cvelistv5 – Published: 2026-08-31 02:22 – Updated: 2026-08-31 16:07
VLAI
EPSS
VEX
Title
AshAdmin LiveView events intern atoms from client input, exhausting the atom table (node DoS)
Summary
Allocation of Resources Without Limits or Throttling vulnerability in ash-project ash_admin lets any client that can reach the admin LiveView exhaust the BEAM atom table and crash the entire node.
Two LiveView event handlers interned atoms from unvalidated client input: AshAdmin.PageLive's set_actor built modules from the resource/domain payload with Module.concat/1, and AshAdmin.Components.Resource.Show's calculate converted every submitted form key with String.to_atom/1. Atoms are never garbage collected and the table is capped, so flooding either event with random names mints a new atom per request until the VM aborts, taking down every application on the node. The fix resolves the submitted resource/domain against the known shown resources and maps calculation keys to declared arguments, so no client-supplied string is interned.
This issue affects ash_admin: from 0.1.0 before 1.3.1.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 16:05 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/ash-project/ash_admin/security… | vendor-advisoryrelated |
| https://cna.erlef.org/cves/CVE-2026-82722.html | related |
| https://osv.dev/vulnerability/EEF-CVE-2026-82722 | related |
| https://github.com/ash-project/ash_admin/commit/7… | patch |
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| ash-project | ash_admin |
Affected:
0.1.0 , < 1.3.1
(semver)
cpe:2.3:a:ash-project:ash_admin:*:*:*:*:*:*:*:* |
||
| ash-project | ash_admin |
Affected:
98b03baa8422b94dd13e305bf08b8ee3f7232c7b , < 731dffa09416d68f4ad3a0b6ee146b285ca0083b
(git)
cpe:2.3:a:ash-project:ash_admin:*:*:*:*:*:*:*:* |
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"negate": false,
"operator": "OR"
}
],
"operator": "AND"
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Peter Ullrich"
},
{
"lang": "en",
"type": "reporter",
"value": "Peter Ullrich"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Zach Daniel / Ash Project"
},
{
"lang": "en",
"type": "coordinator",
"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 ash-project ash_admin lets any client that can reach the admin LiveView exhaust the BEAM atom table and crash the entire node.\u003c/p\u003e\n\u003cp\u003eTwo LiveView event handlers interned atoms from unvalidated client input: \u003ccode\u003eAshAdmin.PageLive\u003c/code\u003e\u0027s \u003ccode\u003eset_actor\u003c/code\u003e built modules from the \u003ccode\u003eresource\u003c/code\u003e/\u003ccode\u003edomain\u003c/code\u003e payload with \u003ccode\u003eModule.concat/1\u003c/code\u003e, and \u003ccode\u003eAshAdmin.Components.Resource.Show\u003c/code\u003e\u0027s \u003ccode\u003ecalculate\u003c/code\u003e converted every submitted form key with \u003ccode\u003eString.to_atom/1\u003c/code\u003e. Atoms are never garbage collected and the table is capped, so flooding either event with random names mints a new atom per request until the VM aborts, taking down every application on the node. The fix resolves the submitted \u003ccode\u003eresource\u003c/code\u003e/\u003ccode\u003edomain\u003c/code\u003e against the known shown resources and maps calculation keys to declared arguments, so no client-supplied string is interned.\u003c/p\u003e\n\u003cp\u003eThis issue affects ash_admin: from 0.1.0 before 1.3.1.\u003c/p\u003e"
},
{
"base64": false,
"type": "text/markdown",
"value": "Allocation of Resources Without Limits or Throttling vulnerability in ash-project ash_admin lets any client that can reach the admin LiveView exhaust the BEAM atom table and crash the entire node.\n\nTwo LiveView event handlers interned atoms from unvalidated client input: `AshAdmin.PageLive`\u0027s `set_actor` built modules from the `resource`/`domain` payload with `Module.concat/1`, and `AshAdmin.Components.Resource.Show`\u0027s `calculate` converted every submitted form key with `String.to_atom/1`. Atoms are never garbage collected and the table is capped, so flooding either event with random names mints a new atom per request until the VM aborts, taking down every application on the node. The fix resolves the submitted `resource`/`domain` against the known shown resources and maps calculation keys to declared arguments, so no client-supplied string is interned.\n\nThis issue affects ash_admin: from 0.1.0 before 1.3.1."
}
],
"value": "Allocation of Resources Without Limits or Throttling vulnerability in ash-project ash_admin lets any client that can reach the admin LiveView exhaust the BEAM atom table and crash the entire node.\n\nTwo LiveView event handlers interned atoms from unvalidated client input: AshAdmin.PageLive\u0027s set_actor built modules from the resource/domain payload with Module.concat/1, and AshAdmin.Components.Resource.Show\u0027s calculate converted every submitted form key with String.to_atom/1. Atoms are never garbage collected and the table is capped, so flooding either event with random names mints a new atom per request until the VM aborts, taking down every application on the node. The fix resolves the submitted resource/domain against the known shown resources and maps calculation keys to declared arguments, so no client-supplied string is interned.\n\nThis issue affects ash_admin: from 0.1.0 before 1.3.1."
}
],
"impacts": [
{
"capecId": "CAPEC-130",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-130 Excessive Allocation"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 8.3,
"baseSeverity": "HIGH",
"privilegesRequired": "LOW",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "HIGH",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "CWE-770 Allocation of Resources Without Limits or Throttling",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-31T02:22:15.099Z",
"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"shortName": "EEF"
},
"references": [
{
"tags": [
"vendor-advisory",
"related"
],
"url": "https://github.com/ash-project/ash_admin/security/advisories/GHSA-wcr6-9rrw-5jhv"
},
{
"tags": [
"related"
],
"url": "https://cna.erlef.org/cves/CVE-2026-82722.html"
},
{
"tags": [
"related"
],
"url": "https://osv.dev/vulnerability/EEF-CVE-2026-82722"
},
{
"tags": [
"patch"
],
"url": "https://github.com/ash-project/ash_admin/commit/731dffa09416d68f4ad3a0b6ee146b285ca0083b"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "AshAdmin LiveView events intern atoms from client input, exhausting the atom table (node DoS)"
}
},
"cveMetadata": {
"assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"assignerShortName": "EEF",
"cveId": "CVE-2026-82722",
"datePublished": "2026-08-31T02:22:15.099Z",
"dateReserved": "2026-08-31T00:59:08.959Z",
"dateUpdated": "2026-08-31T16:07:01.861Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
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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.
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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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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