High
Denial of Service (DoS)
Type: advisorySources: OSV
The package node-opcua before 2.74.0 are vulnerable to Denial of Service (DoS) due to a missing limitation on the number of received chunks - per single session or in total for all concurrent sessions. An attacker can exploit this vulnerability by sending an unlimited number of huge chunks (e.g. 2GB each) without sending the Final closing chunk.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2022-21208
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 8 Nov 2026, 02:01 UTC · Revision 1
Source evidence
The package node-opcua before 2.74.0 are vulnerable to Denial of Service (DoS) due to a missing limitation on the number of received chunks - per single session or in total for all concurrent sessions. An attacker can exploit this vulnerability by sending an unlimited number of huge chunks (e.g. 2GB each) without sending the Final closing chunk.
osv:CVE-2022-21208
Complete source record
{
"id": "273a3aab648af360711453c384d7a79bda4f0991f09823e50117ef9e8c5568fe",
"url": "https://osv.dev/vulnerability/CVE-2022-21208",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Denial of Service (DoS)",
"summary": "The package node-opcua before 2.74.0 are vulnerable to Denial of Service (DoS) due to a missing limitation on the number of received chunks - per single session or in total for all concurrent sessions. An attacker can exploit this vulnerability by sending an unlimited number of huge chunks (e.g. 2GB each) without sending the Final closing chunk.",
"evidence": "osv:CVE-2022-21208",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2022-21208",
"aliases": [
"CVE-2022-21208",
"GHSA-4hr4-pjjh-2q2w"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/node-opcua/node-opcua",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "003ee041795f3b737afaaef5721045ee31ea9f77"
},
{
"fixed": "33ca3bab4ab781392a2f8d8f5a14de9a0aa0e410"
},
{
"fixed": "dbcb5d5191118c22ee9c89332a94b94e6553d76b"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:node-opcua_project:node-opcua:*:*:*:*:*:node.js:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "2.74.0"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "33ca3bab4ab781392a2f8d8f5a14de9a0aa0e410"
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],
"source": "REFERENCES_COMMIT"
},
{
"range": [
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"source": "REFERENCES_COMMIT"
}
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}
}
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"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-21208.json"
}
}
],
"modified": "2026-10-28T02:30:52.767236420Z",
"provider": "osv",
"references": [
"https://security.snyk.io/vuln/SNYK-JS-NODEOPCUA-2988723",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/21xxx/CVE-2022-21208.json",
"https://nvd.nist.gov/vuln/detail/CVE-2022-21208",
"https://github.com/node-opcua/node-opcua/commit/33ca3bab4ab781392a2f8d8f5a14de9a0aa0e410",
"https://github.com/node-opcua/node-opcua/commit/dbcb5d5191118c22ee9c89332a94b94e6553d76b",
"https://github.com/node-opcua/node-opcua/pull/1149"
],
"provider_metadata": {
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"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/21xxx/CVE-2022-21208.json"
}
},
"related_cves": [
{
"value": "CVE-2022-21208",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 521587,
"published_at": "2022-08-23T05:06:18.829+00:00"
}