CVE-2026-82564 (GCVE-0-2026-82564)
Vulnerability from cvelistv5 – Published: 2026-08-31 01:06 – Updated: 2026-09-01 17:18
VLAI
EPSS
VEX
Title
Identity tool filter in AshAi accepts operator maps, allowing update or destroy of unidentified records
Summary
Authorization Bypass Through User-Controlled Key vulnerability in ash-project ash_ai allows a caller of an identity-configured tool to update or destroy records it never identified, including every row in the table.
In AshAi.Tool.Execution, identity_filter/3 built the update/destroy filter directly from the raw tool arguments as [{key, Map.get(arguments, to_string(key))}] and passed it to Ash.Query.do_filter/2. A map value is parsed as a predicate expression rather than a literal, so a caller can send {"public_ref": {"not_eq": "<own-ref>"}} and, combined with Ash.Query.limit(1) and Ash.bulk_update!/Ash.bulk_destroy!, retarget the write at a record it never identified; an omitted key yields an IS NULL filter that matches an arbitrary row. The fix casts each identity value to the field type, rejecting non-scalar inputs.
This issue affects ash_ai: from 0.6.0 before 1.0.0.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 16:04 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/ash-project/ash_ai/security/ad… | vendor-advisoryrelated |
| https://cna.erlef.org/cves/CVE-2026-82564.html | related |
| https://osv.dev/vulnerability/EEF-CVE-2026-82564 | related |
| https://github.com/ash-project/ash_ai/commit/87f6… | patch |
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| ash-project | ash_ai |
Affected:
0.6.0 , < 1.0.0
(semver)
cpe:2.3:a:ash-project:ash_ai:*:*:*:*:*:*:*:* |
||
| ash-project | ash_ai |
Affected:
bc2122f78fca6c11d8ec2b9ac53148ec17476460 , < 87f616d5bfbf7af43346f0701ae17f853789a602
(git)
cpe:2.3:a:ash-project:ash_ai:*:*:*:*:*:*:*:* |
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The fix casts each identity value to the field type, rejecting non-scalar inputs.\\n\\nThis issue affects ash_ai: from 0.6.0 before 1.0.0.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eAuthorization Bypass Through User-Controlled Key vulnerability in ash-project ash_ai allows a caller of an \u003ccode\u003eidentity\u003c/code\u003e-configured tool to update or destroy records it never identified, including every row in the table.\u003c/p\u003e\\n\u003cp\u003eIn \u003ccode\u003eAshAi.Tool.Execution\u003c/code\u003e, \u003ccode\u003eidentity_filter/3\u003c/code\u003e built the update/destroy filter directly from the raw tool arguments as \u003ccode\u003e[{key, Map.get(arguments, to_string(key))}]\u003c/code\u003e and passed it to \u003ccode\u003eAsh.Query.do_filter/2\u003c/code\u003e. A map value is parsed as a predicate expression rather than a literal, so a caller can send \u003ccode\u003e{\\\"public_ref\\\": {\\\"not_eq\\\": \\\"\u0026lt;own-ref\u0026gt;\\\"}}\u003c/code\u003e and, combined with \u003ccode\u003eAsh.Query.limit(1)\u003c/code\u003e and \u003ccode\u003eAsh.bulk_update!\u003c/code\u003e/\u003ccode\u003eAsh.bulk_destroy!\u003c/code\u003e, retarget the write at a record it never identified; an omitted key yields an \u003ccode\u003eIS NULL\u003c/code\u003e filter that matches an arbitrary row. The fix casts each identity value to the field type, rejecting non-scalar inputs.\u003c/p\u003e\\n\u003cp\u003eThis issue affects ash_ai: from 0.6.0 before 1.0.0.\u003c/p\u003e\", \"base64\": false}, {\"type\": \"text/markdown\", \"value\": \"Authorization Bypass Through User-Controlled Key vulnerability in ash-project ash_ai allows a caller of an `identity`-configured tool to update or destroy records it never identified, including every row in the table.\\n\\nIn `AshAi.Tool.Execution`, `identity_filter/3` built the update/destroy filter directly from the raw tool arguments as `[{key, Map.get(arguments, to_string(key))}]` and passed it to `Ash.Query.do_filter/2`. A map value is parsed as a predicate expression rather than a literal, so a caller can send `{\\\"public_ref\\\": {\\\"not_eq\\\": \\\"\u003cown-ref\u003e\\\"}}` and, combined with `Ash.Query.limit(1)` and `Ash.bulk_update!`/`Ash.bulk_destroy!`, retarget the write at a record it never identified; an omitted key yields an `IS NULL` filter that matches an arbitrary row. The fix casts each identity value to the field type, rejecting non-scalar inputs.\\n\\nThis issue affects ash_ai: from 0.6.0 before 1.0.0.\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-639\", \"description\": \"CWE-639 Authorization Bypass Through User-Controlled Key\"}]}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:a:ash-project:ash_ai:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"1.0.0\", \"versionStartIncluding\": \"0.6.0\"}], \"operator\": \"OR\"}], \"operator\": \"AND\"}], \"providerMetadata\": {\"orgId\": \"6b3ad84c-e1a6-4bf7-a703-f496b71e49db\", \"shortName\": \"EEF\", \"dateUpdated\": \"2026-09-01T17:18:18.459Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-82564\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-09-01T17:18:18.459Z\", \"dateReserved\": \"2026-08-30T20:00:01.856Z\", \"assignerOrgId\": \"6b3ad84c-e1a6-4bf7-a703-f496b71e49db\", \"datePublished\": \"2026-08-31T01:06:00.526Z\", \"assignerShortName\": \"EEF\"}",
"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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