Exploitation evidence
Known exploited · CISA KEV listed
Added 2023-09-19. Ransomware campaign use: Unknown.
CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA due date: 2023-10-10. This is the catalog’s deadline, not an assessment of your organization’s exposure.
KEV checked 13 Nov 2026, 00:20 Jerusalem · Original catalog ↗Reported products and versions
minio / minio
Default status: Not specified
- affected: < RELEASE.2023-03-20T20-16-18Z
Fixes and workarounds
No explicit solution text in the downloaded CVE record. Consult the vendor advisory; unaffected version ranges are shown above as reported, not inferred as a patch recommendation.
Sources and related reporting
Observed change timeline
History begins when Egret first downloads each source. It is not the complete upstream CVE history.
12 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-12",
"epss": 0.07917,
"percentile": 0.94802
}10 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-10",
"epss": 0.07917,
"percentile": 0.94769
}09 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-09",
"epss": 0.07917,
"percentile": 0.94763
}08 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-08",
"epss": 0.07917,
"percentile": 0.9476
}07 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-07",
"epss": 0.07917,
"percentile": 0.94756
}06 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-06",
"epss": 0.07917,
"percentile": 0.94748
}06 Nov 2026, 06:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-05",
"epss": 0.07917,
"percentile": 0.94744
}04 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-04",
"epss": 0.07917,
"percentile": 0.94739
}04 Nov 2026, 18:20 Jerusalem · CVE Program record changed
Stored CNA snapshot at this observation.
{
"containers": {
"adp": [
{
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"dateUpdated": "2024-08-02T12:38:25.275Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"references": [
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"x_transferred"
],
"url": "https://github.com/minio/minio/security/advisories/GHSA-2pxw-r47w-4p8c"
},
{
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"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/minio/minio/pull/16849"
},
{
"name": "https://github.com/minio/minio/commit/67f4ba154a27a1b06e48bfabda38355a010dfca5",
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"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/minio/minio/commit/67f4ba154a27a1b06e48bfabda38355a010dfca5"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-28434",
"options": [
{
"Exploitation": "active"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-01-28T21:17:47.891249Z",
"version": "2.0.3"
},
"type": "ssvc"
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},
{
"other": {
"content": {
"dateAdded": "2023-09-19",
"reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-28434"
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"shortName": "CISA-ADP"
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"references": [
{
"tags": [
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"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-28434"
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],
"timeline": [
{
"lang": "en",
"time": "2023-09-19T00:00:00.000Z",
"value": "CVE-2023-28434 added to CISA KEV"
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],
"title": "CISA ADP Vulnrichment"
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],
"cna": {
"affected": [
{
"product": "minio",
"vendor": "minio",
"versions": [
{
"status": "affected",
"version": "< RELEASE.2023-03-20T20-16-18Z"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Minio is a Multi-Cloud Object Storage framework. Prior to RELEASE.2023-03-20T20-16-18Z, an attacker can use crafted requests to bypass metadata bucket name checking and put an object into any bucket while processing `PostPolicyBucket`. To carry out this attack, the attacker requires credentials with `arn:aws:s3:::*` permission, as well as enabled Console API access. This issue has been patched in RELEASE.2023-03-20T20-16-18Z. As a workaround, enable browser API access and turn off `MINIO_BROWSER=off`."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-269",
"description": "CWE-269: Improper Privilege Management",
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"providerMetadata": {
"dateUpdated": "2023-03-22T20:44:04.216Z",
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"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/minio/minio/security/advisories/GHSA-2pxw-r47w-4p8c",
"tags": [
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},
{
"name": "https://github.com/minio/minio/pull/16849",
"tags": [
"x_refsource_MISC"
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{
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}
],
"source": {
"advisory": "GHSA-2pxw-r47w-4p8c",
"discovery": "UNKNOWN"
},
"title": "MinIO is vulnerable to privilege escalation on Linux/MacOS"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2023-28434",
"datePublished": "2023-03-22T20:44:04.216Z",
"dateReserved": "2023-03-15T15:59:10.053Z",
"dateUpdated": "2025-10-21T23:15:22.302Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}03 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-03",
"epss": 0.07917,
"percentile": 0.94731
}03 Nov 2026, 02:22 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-02",
"epss": 0.07917,
"percentile": 0.94724
}03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed
Stored KEV snapshot at this observation.
{
"cveID": "CVE-2023-28434",
"cwes": [
"CWE-269"
],
"dateAdded": "2023-09-19",
"dueDate": "2023-10-10",
"forensicTriage": "No",
"knownRansomwareCampaignUse": "Unknown",
"notes": "https://github.com/minio/minio/security/advisories/GHSA-2pxw-r47w-4p8c; https://nvd.nist.gov/vuln/detail/CVE-2023-28434",
"product": "MinIO",
"requiredAction": "Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.",
"shortDescription": "MinIO contains a security feature bypass vulnerability that allows an attacker to use crafted requests to bypass metadata bucket name checking and put an object into any bucket while processing `PostPolicyBucket` to conduct privilege escalation. To carry out this attack, the attacker requires credentials with `arn:aws:s3:::*` permission, as well as enabled Console API access.",
"vendorProject": "MinIO",
"vulnerabilityName": "MinIO Security Feature Bypass Vulnerability"
}