High
Security advisory
ssri 5.2.2-8.0.0, fixed in 8.0.1, processes SRIs using a regular expression which is vulnerable to a denial of service. Malicious SRIs could take an extremely long time to process, leading to denial of service. This issue only affects consumers using the strict option.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2021-27290
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 04:34 UTC · Revision 1
Source evidence
ssri 5.2.2-8.0.0, fixed in 8.0.1, processes SRIs using a regular expression which is vulnerable to a denial of service. Malicious SRIs could take an extremely long time to process, leading to denial of service. This issue only affects consumers using the strict option.
osv:CVE-2021-27290
Complete source record
{
"id": "eb5b7aed11f0b859fa35048589e7f496289e040eb1e3da3652df87ba93904395",
"url": "https://osv.dev/vulnerability/CVE-2021-27290",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2021-27290",
"summary": "ssri 5.2.2-8.0.0, fixed in 8.0.1, processes SRIs using a regular expression which is vulnerable to a denial of service. Malicious SRIs could take an extremely long time to process, leading to denial of service. This issue only affects consumers using the strict option.",
"evidence": "osv:CVE-2021-27290",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2021-27290",
"aliases": [
"CVE-2021-27290",
"GHSA-vx3p-948g-6vhq"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/graalvm/graalvm-ce-builds",
"type": "GIT",
"events": [
{
"introduced": "55ff3f2503007a859219b5e7f68b0f6ca95225f0"
},
{
"last_affected": "771d7a8d2b73cf72a2622ca6305dcc9e9306f296"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:oracle:graalvm:20.3.3:*:*:*:enterprise:*:*:*",
"range": [
{
"introduced": "20.3.3"
},
{
"last_affected": "20.3.3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:oracle:graalvm:21.2.0:*:*:*:enterprise:*:*:*",
"range": [
{
"introduced": "21.2.0"
},
{
"last_affected": "21.2.0"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"20.3.3",
"21.2.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-27290.json"
}
},
{
"ranges": [
{
"repo": "https://github.com/npm/ssri",
"type": "GIT",
"events": [
{
"introduced": "0fb45e7e0eba615bf0080bf350c95e19412ff9a9"
},
{
"fixed": "b7c8c7c61db89aeb9fbf7596c0ef17071bc216ef"
},
{
"introduced": "9c76e0cf1079a314880078ddfa1dd2b241ba4133"
},
{
"fixed": "3eec7a375a8c7664d4e33c212058313c6fb43c57"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:ssri_project:ssri:*:*:*:*:*:node.js:*:*",
"range": [
{
"introduced": "5.2.2"
},
{
"fixed": "6.0.2"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:ssri_project:ssri:*:*:*:*:*:node.js:*:*",
"range": [
{
"introduced": "7.0.0"
},
{
"fixed": "8.0.1"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v7.1.0",
"v6.0.1",
"v8.0.0",
"v7.0.1",
"v7.0.0",
"v6.0.0",
"v5.3.0",
"v5.2.4",
"v5.2.3",
"v5.2.2"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-27290.json"
}
}
],
"modified": "2026-10-24T10:30:20.324925391Z",
"provider": "osv",
"references": [
"https://npmjs.com",
"https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf",
"https://doyensec.com/resources/Doyensec_Advisory_ssri_redos.pdf",
"https://www.oracle.com/security-alerts/cpuoct2021.html",
"https://github.com/yetingli/SaveResults/blob/main/pdf/ssri-redos.pdf"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:siemens:sinec_infrastructure_network_services:*:*:*:*:*:*:*:*"
],
"vendor_product": "siemens:sinec_infrastructure_network_services",
"extracted_events": [
{
"range": [
{
"fixed": "1.0.1.1"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:ssri_project:ssri:*:*:*:*:*:node.js:*:*"
],
"vendor_product": "ssri_project:ssri",
"extracted_events": [
{
"range": [
{
"introduced": "5.2.2"
},
{
"fixed": "6.0.2"
},
{
"introduced": "7.0.0"
},
{
"fixed": "8.0.1"
}
],
"source": "CPE_RANGE"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2021-27290",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 430238,
"published_at": "2021-03-12T22:15:14.843+00:00"
}