Medium
node-source-map-resolve — security advisory
decode-uri-component through 0.4.1 is vulnerable to denial of service. The decode() function splits input on '%' producing N tokens and calls decodeComponents(), exhibiting super-linear parsing time: 200 '%ab' tokens takes approximately 0.7s, 700 tokens approximately 6s, and 1400 tokens approximately 33s. An attacker can cause significant CPU consumption and event-loop blocking via crafted input.
- Products
- node-source-map-resolve
- Affected versions
- 0.6.0+~cs2.7.2-2, 0.6.0+~cs2.7.3-2
- Fixed versions
- Not specified
- CVEs
- CVE-2026-45822
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:05 UTC · Revision 1
Source evidence
decode-uri-component through 0.4.1 is vulnerable to denial of service. The decode() function splits input on '%' producing N tokens and calls decodeComponents(), exhibiting super-linear parsing time: 200 '%ab' tokens takes approximately 0.7s, 700 tokens approximately 6s, and 1400 tokens approximately 33s. An attacker can cause significant CPU consumption and event-loop blocking via crafted input.
osv:UBUNTU-CVE-2026-45822
node-source-map-resolve
Fixed versions: Not specified
node-source-map-resolve
Fixed versions: Not specified
node-source-map-resolve
Fixed versions: Not specified
node-source-map-resolve
Fixed versions: Not specified
node-source-map-resolve
Fixed versions: Not specified
Complete source record
{
"id": "d6692ee8b7f3a48e31e29bbe02844b878d975fd531964fe5584985ef492512da",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-45822",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-45822",
"summary": "decode-uri-component through 0.4.1 is vulnerable to denial of service. The decode() function splits input on '%' producing N tokens and calls decodeComponents(), exhibiting super-linear parsing time: 200 '%ab' tokens takes approximately 0.7s, 700 tokens approximately 6s, and 1400 tokens approximately 33s. An attacker can cause significant CPU consumption and event-loop blocking via crafted input.",
"evidence": "osv:UBUNTU-CVE-2026-45822",
"products": [
{
"name": {
"value": "node-source-map-resolve",
"evidence": "/affected/0/package/name"
},
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"fixed_versions": [],
"affected_versions": [
{
"value": "0.6.0+~cs2.7.2-2",
"evidence": "/affected/0/versions"
},
{
"value": "0.6.0+~cs2.7.3-2",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
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{
"name": {
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"evidence": "/affected/4/package/name"
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"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2026-45822",
"aliases": [
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"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/S:N/AU:Y/R:U/V:D/RE:M/U:Amber"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
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],
"package": {
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"purl": "pkg:deb/ubuntu/node-source-map-resolve?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
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"versions": [
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"database_specific": {
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"versions": [
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"database_specific": {
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},
"ecosystem_specific": {
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"versions": [
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"versions": [
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"database_specific": {
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},
"ecosystem_specific": {
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{
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"package": {
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"purl": "pkg:deb/ubuntu/node-source-map-resolve?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"0.6.0+~cs2.7.3-2"
],
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"ecosystem_specific": {
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{
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],
"modified": "2026-10-17T13:00:11.482650972Z",
"provider": "osv",
"upstream": [
"CVE-2026-45822"
],
"references": [
"https://ubuntu.com/security/CVE-2026-45822",
"https://www.cve.org/CVERecord?id=CVE-2026-45822",
"https://github.com/SamVerschueren/decode-uri-component/blob/00662938dc7c6241547ae8abce7785cc13ffd3f6/index.js",
"https://github.com/SamVerschueren/decode-uri-component/commit/fa479dafeede7bedf04e5c89aa78f2a78c664005",
"https://www.npmjs.com/package/decode-uri-component"
]
},
"related_cves": [
{
"value": "CVE-2026-45822",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 360392,
"published_at": "2026-06-30T09:16:00+00:00"
}