Medium
node-graphql — security advisory
Versions of the package graphql from 16.3.0 and before 16.8.1 are vulnerable to Denial of Service (DoS) due to insufficient checks in the OverlappingFieldsCanBeMergedRule.ts file when parsing large queries. This vulnerability allows an attacker to degrade system performance. **Note:** It was not proven that this vulnerability can crash the process.
- Products
- node-graphql
- Affected versions
- 15.5.0-1, 15.5.0-2, 16.6.0-2, 16.8.1-1, 16.8.1-2, 16.8.1-3, 16.8.1-4, 16.8.1-5
- Fixed versions
- Not specified
- CVEs
- CVE-2023-26144
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 00:49 UTC · Revision 1
Source evidence
Versions of the package graphql from 16.3.0 and before 16.8.1 are vulnerable to Denial of Service (DoS) due to insufficient checks in the OverlappingFieldsCanBeMergedRule.ts file when parsing large queries. This vulnerability allows an attacker to degrade system performance. **Note:** It was not proven that this vulnerability can crash the process.
osv:UBUNTU-CVE-2023-26144
node-graphql
Fixed versions: Not specified
node-graphql
Fixed versions: Not specified
node-graphql
Fixed versions: Not specified
node-graphql
Fixed versions: Not specified
node-graphql
Fixed versions: Not specified
Complete source record
{
"id": "c9adf152f4f937c1214a786235dd37a5e35928bfff45998cfa1acc2ecebce76d",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2023-26144",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2023-26144",
"summary": "Versions of the package graphql from 16.3.0 and before 16.8.1 are vulnerable to Denial of Service (DoS) due to insufficient checks in the OverlappingFieldsCanBeMergedRule.ts file when parsing large queries. This vulnerability allows an attacker to degrade system performance. **Note:** It was not proven that this vulnerability can crash the process.",
"evidence": "osv:UBUNTU-CVE-2023-26144",
"products": [
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"aliases": [
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{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
},
{
"type": "Ubuntu",
"score": "medium"
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"affected": [
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"ecosystem": "Ubuntu:22.04:LTS"
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],
"modified": "2026-10-17T12:56:04.499389002Z",
"provider": "osv",
"upstream": [
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],
"references": [
"https://ubuntu.com/security/CVE-2023-26144",
"https://github.com/graphql/graphql-js/commit/f94b511386c7e47bd0380dcd56553dc063320226",
"https://github.com/graphql/graphql-js/pull/3972",
"https://security.snyk.io/vuln/SNYK-JS-GRAPHQL-5905181",
"https://github.com/graphql/graphql-js/issues/3955",
"https://github.com/graphql/graphql-js/releases/tag/v16.8.1",
"https://www.cve.org/CVERecord?id=CVE-2023-26144"
]
},
"related_cves": [
{
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"evidence": "/upstream"
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],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 354766,
"published_at": "2023-09-20T05:15:00+00:00"
}