CVE-2026-67579 (GCVE-0-2026-67579)
Vulnerability from cvelistv5 – Published: 2026-08-12 20:04 – Updated: 2026-08-13 12:44
VLAI
EPSS
VEX
Title
Filter expression injection via forged keyset pagination cursor in Ash
Summary
Deserialization of Untrusted Data vulnerability in ash-project ash allows an unauthenticated attacker to inject a filter expression through a forged keyset pagination cursor, resulting in SQL injection or code execution depending on the data layer.
Read actions with keyset pagination decode the client-supplied page[:after] or page[:before] cursor in decode_values/2 in lib/ash/page/keyset.ex using non_executable_binary_to_term/2 with [:safe]. That guard blocks new atoms, funs, and ports, but not a struct built from atoms already interned in a running Ash application, so a decoded %Ash.Query.Call{} expression survives and is spliced into the keyset filter as a comparison value in do_filters/4 and evaluated. Because the cursor bypasses the Ash.Expr macro, the runtime never applies the private?/public? gate that would otherwise reject it. On AshPostgres the injected fragment is inlined into the SQL query; on the ETS and Simple data layers it is evaluated in-process as an arbitrary function call.
This issue affects ash: from 1.17.0 before 3.31.3.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 12:43 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/ash-project/ash/security/advis… | vendor-advisoryrelated |
| https://cna.erlef.org/cves/CVE-2026-67579.html | related |
| https://osv.dev/vulnerability/EEF-CVE-2026-67579 | related |
| https://github.com/ash-project/ash/commit/91874dd… | patch |
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| ash-project | ash |
Affected:
1.17.0 , < 3.31.3
(semver)
cpe:2.3:a:ash-project:ash:*:*:*:*:*:*:*:* |
||
| ash-project | ash |
Affected:
f8fadc67e67c955bb68b3a8d642be13e2b7e8ca9 , < 91874dd5435bc0ffebd8a254acfa573b39b74520
(git)
cpe:2.3:a:ash-project:ash:*:*:*:*:*:*:*:* |
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"dateUpdated": "2026-08-13T12:44:14.133Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/ash-project/ash/security/advisories/GHSA-3gq3-9xm3-c8v3"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://repo.hex.pm",
"cpes": [
"cpe:2.3:a:ash-project:ash:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unaffected",
"modules": [
"\u0027Elixir.Ash.Page.Keyset\u0027"
],
"packageName": "ash",
"packageURL": "pkg:hex/ash",
"product": "ash",
"programFiles": [
"lib/ash/page/keyset.ex"
],
"programRoutines": [
{
"name": "\u0027Elixir.Ash.Page.Keyset\u0027:decode_values/2"
},
{
"name": "\u0027Elixir.Ash.Page.Keyset\u0027:do_filters/4"
}
],
"repo": "https://github.com/ash-project/ash",
"vendor": "ash-project",
"versions": [
{
"lessThan": "3.31.3",
"status": "affected",
"version": "1.17.0",
"versionType": "semver"
}
]
},
{
"collectionURL": "https://github.com",
"cpes": [
"cpe:2.3:a:ash-project:ash:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unaffected",
"modules": [
"\u0027Elixir.Ash.Page.Keyset\u0027"
],
"packageName": "ash-project/ash",
"packageURL": "pkg:github/ash-project/ash",
"product": "ash",
"programFiles": [
"lib/ash/page/keyset.ex"
],
"programRoutines": [
{
"name": "\u0027Elixir.Ash.Page.Keyset\u0027:decode_values/2"
},
{
"name": "\u0027Elixir.Ash.Page.Keyset\u0027:do_filters/4"
}
],
"repo": "https://github.com/ash-project/ash",
"vendor": "ash-project",
"versions": [
{
"lessThan": "91874dd5435bc0ffebd8a254acfa573b39b74520",
"status": "affected",
"version": "f8fadc67e67c955bb68b3a8d642be13e2b7e8ca9",
"versionType": "git"
}
]
}
],
"configurations": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eA read action must declare \u003ccode\u003ekeyset? true\u003c/code\u003e in its \u003ccode\u003epagination\u003c/code\u003e block, and the application must pass a client-supplied value as the \u003ccode\u003e:after\u003c/code\u003e or \u003ccode\u003e:before\u003c/code\u003e page option. The severity of a successful attack depends on the data layer: AshPostgres yields SQL injection, while the ETS and Simple data layers evaluate the injected expression in-process.\u003c/p\u003e"
},
{
"base64": false,
"type": "text/markdown",
"value": "A read action must declare `keyset? true` in its `pagination` block, and the application must pass a client-supplied value as the `:after` or `:before` page option. The severity of a successful attack depends on the data layer: AshPostgres yields SQL injection, while the ETS and Simple data layers evaluate the injected expression in-process."
}
],
"value": "A read action must declare keyset? true in its pagination block, and the application must pass a client-supplied value as the :after or :before page option. The severity of a successful attack depends on the data layer: AshPostgres yields SQL injection, while the ETS and Simple data layers evaluate the injected expression in-process."
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:ash-project:ash:*:*:*:*:*:*:*:*",
"versionEndExcluding": "3.31.3",
"versionStartIncluding": "1.17.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Jisung Chae"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Zach Daniel"
},
{
"lang": "en",
"type": "analyst",
"value": "Jonatan M\u00e4nnchen / EEF"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eDeserialization of Untrusted Data vulnerability in ash-project ash allows an unauthenticated attacker to inject a filter expression through a forged keyset pagination cursor, resulting in SQL injection or code execution depending on the data layer.\u003c/p\u003e\n\u003cp\u003eRead actions with keyset pagination decode the client-supplied \u003ccode\u003epage[:after]\u003c/code\u003e or \u003ccode\u003epage[:before]\u003c/code\u003e cursor in \u003ccode\u003edecode_values/2\u003c/code\u003e in \u003ccode\u003elib/ash/page/keyset.ex\u003c/code\u003e using \u003ccode\u003enon_executable_binary_to_term/2\u003c/code\u003e with \u003ccode\u003e[:safe]\u003c/code\u003e. That guard blocks new atoms, funs, and ports, but not a struct built from atoms already interned in a running Ash application, so a decoded \u003ccode\u003e%Ash.Query.Call{}\u003c/code\u003e expression survives and is spliced into the keyset filter as a comparison value in \u003ccode\u003edo_filters/4\u003c/code\u003e and evaluated. Because the cursor bypasses the \u003ccode\u003eAsh.Expr\u003c/code\u003e macro, the runtime never applies the \u003ccode\u003eprivate?\u003c/code\u003e/\u003ccode\u003epublic?\u003c/code\u003e gate that would otherwise reject it. On AshPostgres the injected \u003ccode\u003efragment\u003c/code\u003e is inlined into the SQL query; on the ETS and Simple data layers it is evaluated in-process as an arbitrary function call.\u003c/p\u003e\n\u003cp\u003eThis issue affects ash: from 1.17.0 before 3.31.3.\u003c/p\u003e"
},
{
"base64": false,
"type": "text/markdown",
"value": "Deserialization of Untrusted Data vulnerability in ash-project ash allows an unauthenticated attacker to inject a filter expression through a forged keyset pagination cursor, resulting in SQL injection or code execution depending on the data layer.\n\nRead actions with keyset pagination decode the client-supplied `page[:after]` or `page[:before]` cursor in `decode_values/2` in `lib/ash/page/keyset.ex` using `non_executable_binary_to_term/2` with `[:safe]`. That guard blocks new atoms, funs, and ports, but not a struct built from atoms already interned in a running Ash application, so a decoded `%Ash.Query.Call{}` expression survives and is spliced into the keyset filter as a comparison value in `do_filters/4` and evaluated. Because the cursor bypasses the `Ash.Expr` macro, the runtime never applies the `private?`/`public?` gate that would otherwise reject it. On AshPostgres the injected `fragment` is inlined into the SQL query; on the ETS and Simple data layers it is evaluated in-process as an arbitrary function call.\n\nThis issue affects ash: from 1.17.0 before 3.31.3."
}
],
"value": "Deserialization of Untrusted Data vulnerability in ash-project ash allows an unauthenticated attacker to inject a filter expression through a forged keyset pagination cursor, resulting in SQL injection or code execution depending on the data layer.\n\nRead actions with keyset pagination decode the client-supplied page[:after] or page[:before] cursor in decode_values/2 in lib/ash/page/keyset.ex using non_executable_binary_to_term/2 with [:safe]. That guard blocks new atoms, funs, and ports, but not a struct built from atoms already interned in a running Ash application, so a decoded %Ash.Query.Call{} expression survives and is spliced into the keyset filter as a comparison value in do_filters/4 and evaluated. Because the cursor bypasses the Ash.Expr macro, the runtime never applies the private?/public? gate that would otherwise reject it. On AshPostgres the injected fragment is inlined into the SQL query; on the ETS and Simple data layers it is evaluated in-process as an arbitrary function call.\n\nThis issue affects ash: from 1.17.0 before 3.31.3."
}
],
"impacts": [
{
"capecId": "CAPEC-586",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-586 Object Injection"
}
]
},
{
"capecId": "CAPEC-66",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-66 SQL Injection"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "LOCAL",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-502",
"description": "CWE-502 Deserialization of Untrusted Data",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-89",
"description": "CWE-89 Improper Neutralization of Special Elements used in an SQL Command (\u0027SQL Injection\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-12T20:04:42.256Z",
"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"shortName": "EEF"
},
"references": [
{
"tags": [
"vendor-advisory",
"related"
],
"url": "https://github.com/ash-project/ash/security/advisories/GHSA-3gq3-9xm3-c8v3"
},
{
"tags": [
"related"
],
"url": "https://cna.erlef.org/cves/CVE-2026-67579.html"
},
{
"tags": [
"related"
],
"url": "https://osv.dev/vulnerability/EEF-CVE-2026-67579"
},
{
"tags": [
"patch"
],
"url": "https://github.com/ash-project/ash/commit/91874dd5435bc0ffebd8a254acfa573b39b74520"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Filter expression injection via forged keyset pagination cursor in Ash"
}
},
"cveMetadata": {
"assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"assignerShortName": "EEF",
"cveId": "CVE-2026-67579",
"datePublished": "2026-08-12T20:04:42.256Z",
"dateReserved": "2026-08-09T16:45:01.833Z",
"dateUpdated": "2026-08-13T12:44:48.074Z",
"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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