Medium
Security advisory
The package postcss from 7.0.0 and before 8.2.10 are vulnerable to Regular Expression Denial of Service (ReDoS) during source map parsing.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2021-23368
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 11:40 UTC · Revision 1
Source evidence
The package postcss from 7.0.0 and before 8.2.10 are vulnerable to Regular Expression Denial of Service (ReDoS) during source map parsing.
osv:CVE-2021-23368
Complete source record
{
"id": "8af8f2e31b6ec56ddf5ac9bba5b013ae350109e6289d3d4f7fa7368b360215ef",
"url": "https://osv.dev/vulnerability/CVE-2021-23368",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2021-23368",
"summary": "The package postcss from 7.0.0 and before 8.2.10 are vulnerable to Regular Expression Denial of Service (ReDoS) during source map parsing.",
"evidence": "osv:CVE-2021-23368",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2021-23368",
"aliases": [
"CVE-2021-23368",
"GHSA-hwj9-h5mp-3pm3"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/postcss/postcss",
"type": "GIT",
"events": [
{
"introduced": "d1c53a2b5dcb6b48f11889fafb94fe022306783b"
},
{
"fixed": "67e3d7b3402c5d3d036ab7c1e781f86910d6ca72"
},
{
"introduced": "d41a37605adc16b3eb17f806ce0259a8b316e603"
},
{
"fixed": "8395d9f53efbaae5f3372b6b662a9e9b5b02360b"
},
{
"fixed": "8682b1e4e328432ba692bed52326e84439cec9e4"
},
{
"fixed": "b6f3e4d5a8d7504d553267f80384373af3a3dec5"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:postcss:postcss:*:*:*:*:*:node.js:*:*",
"range": [
{
"introduced": "7.0.0"
},
{
"fixed": "7.0.36"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:postcss:postcss:*:*:*:*:*:node.js:*:*",
"range": [
{
"introduced": "8.0.0"
},
{
"fixed": "8.2.10"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "8682b1e4e328432ba692bed52326e84439cec9e4"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "b6f3e4d5a8d7504d553267f80384373af3a3dec5"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"7.0.35",
"8.2.9",
"8.2.8",
"8.2.7",
"8.2.6",
"8.2.5",
"8.2.4",
"8.2.3",
"8.2.2",
"8.2.1",
"8.2.0",
"8.1.14",
"8.1.13",
"8.1.12",
"8.1.11",
"8.1.10",
"8.1.9",
"8.1.8",
"8.1.7",
"8.1.6",
"8.1.5",
"8.1.4",
"8.1.3",
"8.1.2",
"8.1.1",
"7.0.34",
"8.1.0",
"8.0.9",
"8.0.8",
"8.0.7",
"8.0.6",
"8.0.5",
"8.0.4",
"7.0.33",
"7.0.32",
"8.0.3",
"8.0.2",
"8.0.1",
"8.0.0",
"7.0.31",
"7.0.30",
"7.0.29",
"7.0.28",
"7.0.27",
"7.0.26",
"7.0.25",
"7.0.24",
"7.0.23",
"7.0.22",
"7.0.21",
"7.0.20",
"7.0.19",
"7.0.18",
"7.0.17",
"7.0.16",
"7.0.15",
"7.0.14",
"7.0.13",
"7.0.12",
"7.0.11",
"7.0.10",
"7.0.9",
"7.0.8",
"7.0.7",
"7.0.6",
"7.0.5",
"7.0.4",
"7.0.3",
"7.0.2",
"7.0.1",
"7.0.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-23368.json"
}
}
],
"modified": "2026-10-20T10:54:31.938273593Z",
"provider": "osv",
"references": [
"https://lists.apache.org/thread.html/r00158f5d770d75d0655c5eef1bdbc6150531606c8f8bcb778f0627be%40%3Cdev.myfaces.apache.org%3E",
"https://lists.apache.org/thread.html/r16e295b4f02d81b79981237d602cb0b9e59709bafaa73ac98be7cef1%40%3Cdev.myfaces.apache.org%3E",
"https://lists.apache.org/thread.html/r49afb49b38748897211b1f89c3a64dc27f9049474322b05715695aab%40%3Cdev.myfaces.apache.org%3E",
"https://lists.apache.org/thread.html/r5acd89f3827ad9a9cad6d24ed93e377f7114867cd98cfba616c6e013%40%3Ccommits.myfaces.apache.org%3E",
"https://lists.apache.org/thread.html/r8def971a66cf3e375178fbee752e1b04a812a047cc478ad292007e33%40%3Cdev.myfaces.apache.org%3E",
"https://lists.apache.org/thread.html/rad5af2044afb51668b1008b389ac815a28ecea9eb75ae2cab5a00ebb%40%3Ccommits.myfaces.apache.org%3E",
"https://github.com/postcss/postcss/commit/8682b1e4e328432ba692bed52326e84439cec9e4",
"https://github.com/postcss/postcss/commit/b6f3e4d5a8d7504d553267f80384373af3a3dec5",
"https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1244795",
"https://snyk.io/vuln/SNYK-JS-POSTCSS-1090595"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2021-23368",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 385493,
"published_at": "2021-04-12T14:15:14.257+00:00"
}