High
Security advisory
Magento versions 2.3.4 and earlier, 2.2.11 and earlier (see note), 1.14.4.4 and earlier, and 1.9.4.4 and earlier have an observable timing discrepancy vulnerability. Successful exploitation could lead to signature verification bypass.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-9588
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 07:53 UTC · Revision 1
Source evidence
Magento versions 2.3.4 and earlier, 2.2.11 and earlier (see note), 1.14.4.4 and earlier, and 1.9.4.4 and earlier have an observable timing discrepancy vulnerability. Successful exploitation could lead to signature verification bypass.
osv:CVE-2020-9588
Complete source record
{
"id": "203ee05b266bca28cdaf6b460e8ecf88d0994d2cc7b62326a8318988cdaff133",
"url": "https://osv.dev/vulnerability/CVE-2020-9588",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-9588",
"summary": "Magento versions 2.3.4 and earlier, 2.2.11 and earlier (see note), 1.14.4.4 and earlier, and 1.9.4.4 and earlier have an observable timing discrepancy vulnerability. Successful exploitation could lead to signature verification bypass.",
"evidence": "osv:CVE-2020-9588",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2020-9588",
"aliases": [
"BIT-magento-2020-9588",
"CVE-2020-9588",
"GHSA-j2r4-2cr6-h3r3"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/magento/devdocs",
"type": "GIT",
"events": [
{
"introduced": "239bfc72e116f6814ff6c2f6731f0830f3bcf61c"
},
{
"last_affected": "5cfffdd1b2c6bd7cef8c07226b09da8c92d519a7"
},
{
"introduced": "75da24b3b0fb950648d00e7454dae0bb7da64c30"
},
{
"last_affected": "5cfffdd1b2c6bd7cef8c07226b09da8c92d519a7"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:magento:magento:*:*:*:*:commerce:*:*:*",
"range": [
{
"introduced": "2.2.0"
},
{
"last_affected": "2.2.11"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:magento:magento:*:*:*:*:open_source:*:*:*",
"range": [
{
"introduced": "2.2.0"
},
{
"last_affected": "2.2.11"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:magento:magento:*:*:*:*:commerce:*:*:*",
"range": [
{
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{
"last_affected": "2.3.4"
}
],
"source": "CPE_RANGE"
},
{
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},
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}
],
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}
]
}
}
],
"versions": [
"2.3.0",
"2.2.7",
"2.1.16",
"2.3.4",
"2.3.3-p1",
"2.2.11",
"2.3.2",
"2.2.9",
"2.1.18",
"2.3.1",
"2.2.8",
"2.1.17"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-9588.json"
}
},
{
"ranges": [
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"repo": "https://github.com/magento/magento2",
"type": "GIT",
"events": [
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{
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{
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{
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],
"database_specific": {
"extracted_events": [
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"cpe": "cpe:2.3:a:magento:magento:*:*:*:*:commerce:*:*:*",
"range": [
{
"introduced": "2.2.0"
},
{
"last_affected": "2.2.11"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:magento:magento:*:*:*:*:open_source:*:*:*",
"range": [
{
"introduced": "2.2.0"
},
{
"last_affected": "2.2.11"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:magento:magento:*:*:*:*:commerce:*:*:*",
"range": [
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},
{
"last_affected": "2.3.4"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:magento:magento:*:*:*:*:open_source:*:*:*",
"range": [
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},
{
"last_affected": "2.3.4"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"2.3.4",
"2.3.3",
"2.3.2",
"2.3.1",
"2.3.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-9588.json"
}
}
],
"modified": "2026-10-24T10:30:59.998915041Z",
"provider": "osv",
"references": [
"https://helpx.adobe.com/security/products/magento/apsb20-22.html"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:magento:magento:*:*:*:*:community:*:*:*",
"cpe:2.3:a:magento:magento:*:*:*:*:enterprise:*:*:*"
],
"vendor_product": "magento:magento",
"extracted_events": [
{
"range": [
{
"last_affected": "1.9.4.4"
},
{
"last_affected": "1.9.4.4"
},
{
"last_affected": "1.14.4.4"
},
{
"last_affected": "1.14.4.4"
}
],
"source": "CPE_RANGE"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2020-9588",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 439442,
"published_at": "2020-06-26T21:15:17.327+00:00"
}