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vuln-cve/data/2026/44xxx/CVE-2026-44267.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-44267",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-05-05T16:33:55.845Z",
"datePublished": "2026-11-03T17:52:25.509Z",
"dateUpdated": "2026-11-07T03:20:59.234Z"
},
"containers": {
"cna": {
"title": "Elo: Sandbox escape to arbitrary Node.js / browser code execution via unfiltered `.constructor` member access in Elo JavaScript emitter",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"lang": "en",
"description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-94",
"lang": "en",
"description": "CWE-94: Improper Control of Generation of Code ('Code Injection')",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-693",
"lang": "en",
"description": "CWE-693: Protection Mechanism Failure",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-1336",
"lang": "en",
"description": "CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/enspirit/elo/security/advisories/GHSA-33r5-xmm8-v6x5",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/enspirit/elo/security/advisories/GHSA-33r5-xmm8-v6x5"
},
{
"name": "https://github.com/enspirit/elo/commit/2136da1f64eec8ebf99890d3100be9394534b842",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/enspirit/elo/commit/2136da1f64eec8ebf99890d3100be9394534b842"
},
{
"name": "https://github.com/enspirit/elo/commit/d2a89a8db76a244eb740687524a7e8529b7554b5",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/enspirit/elo/commit/d2a89a8db76a244eb740687524a7e8529b7554b5"
}
],
"affected": [
{
"vendor": "enspirit",
"product": "elo",
"versions": [
{
"version": "< 1.0.1",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-11-03T17:52:25.509Z"
},
"descriptions": [
{
"lang": "en",
"value": "Elo is a purely functional expression language for no-code tools. Prior to 1.0.1, plain Elo strings supplied to defaultFormats.elo.parse(), bin/elo, or elo-lang.org/try can use .constructor.constructor to reach JavaScript Function because the member_access handler in src/transform.ts does not reject meta-properties, src/compilers/javascript.ts emits the surviving property directly, and src/parser.ts accepts constructor as an ordinary identifier. The resulting generated JavaScript executes attacker-selected code in the host runtime. This permits browser script execution and session compromise on the auto-running playground and arbitrary Node.js code execution on library, CI, or DevOps hosts. This plain-string path is distinct from the programmatic AST-object injection issue. This issue is fixed in version 1.0.1."
}
],
"source": {
"advisory": "GHSA-33r5-xmm8-v6x5",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"references": [
{
"url": "https://github.com/enspirit/elo/security/advisories/GHSA-33r5-xmm8-v6x5",
"tags": [
"exploit"
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-11-07T03:20:33.140328Z",
"id": "CVE-2026-44267",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-11-07T03:20:59.234Z"
}
}
]
}
}