GHSA-F7F6-9JQ7-3RQJ
Vulnerability from github – Published: 2025-04-07 19:09 – Updated: 2025-04-07 19:09
VLAI?
Summary
estree-util-value-to-estree allows prototype pollution in generated ESTree
Details
Impact
When generating an ESTree from a value with a property named __proto__, valueToEstree would generate an object that specifies a prototype instead.
Example:
import { generate } from 'astring'
import { valueToEstree } from 'estree-util-value-to-estree'
const estree = valueToEstree({
['__proto__']: {}
})
const code = generate(estree)
console.log(code)
Output:
{
"__proto__": {}
}
Patches
This was fixed in version 3.3.3.
Workarounds
If you control the input, don’t specify a property named __proto__. If you don’t control the output, strip any properties named __proto__ before passing it to valueToEstree.
Severity ?
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "estree-util-value-to-estree"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.3.3"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2025-32014"
],
"database_specific": {
"cwe_ids": [
"CWE-1321"
],
"github_reviewed": true,
"github_reviewed_at": "2025-04-07T19:09:48Z",
"nvd_published_at": "2025-04-07T15:15:44Z",
"severity": "MODERATE"
},
"details": "### Impact\nWhen generating an ESTree from a value with a property named `__proto__`, `valueToEstree` would generate an object that specifies a prototype instead.\n\nExample:\n\n```js\nimport { generate } from \u0027astring\u0027\nimport { valueToEstree } from \u0027estree-util-value-to-estree\u0027\n\nconst estree = valueToEstree({\n [\u0027__proto__\u0027]: {}\n})\nconst code = generate(estree)\nconsole.log(code)\n```\n\nOutput:\n\n```js\n{\n \"__proto__\": {}\n}\n```\n\n### Patches\nThis was fixed in version [3.3.3](https://github.com/remcohaszing/estree-util-value-to-estree/releases/tag/v3.3.3).\n\n### Workarounds\nIf you control the input, don\u2019t specify a property named `__proto__`. If you don\u2019t control the output, strip any properties named `__proto__` before passing it to `valueToEstree`.",
"id": "GHSA-f7f6-9jq7-3rqj",
"modified": "2025-04-07T19:09:48Z",
"published": "2025-04-07T19:09:48Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/remcohaszing/estree-util-value-to-estree/security/advisories/GHSA-f7f6-9jq7-3rqj"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-32014"
},
{
"type": "WEB",
"url": "https://github.com/remcohaszing/estree-util-value-to-estree/commit/d0c394fbc64bc55937ffe4e162b81f15ba506e55"
},
{
"type": "PACKAGE",
"url": "https://github.com/remcohaszing/estree-util-value-to-estree"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
],
"summary": "estree-util-value-to-estree allows prototype pollution in generated ESTree"
}
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Sightings
| Author | Source | Type | Date |
|---|
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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