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vuln-cve/data/2026/46xxx/CVE-2026-46685.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-46685",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-05-15T21:46:51.548Z",
"datePublished": "2026-05-28T18:41:35.789Z",
"dateUpdated": "2026-05-28T19:22:19.301Z"
},
"containers": {
"cna": {
"title": "RustFS: Reflective CORS with credentials on S3 listener; unauthenticated license metadata endpoint on console",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-306",
"lang": "en",
"description": "CWE-306: Missing Authentication for Critical Function",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-346",
"lang": "en",
"description": "CWE-346: Origin Validation Error",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-942",
"lang": "en",
"description": "CWE-942: Permissive Cross-domain Policy with Untrusted Domains",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"privilegesRequired": "NONE",
"userInteraction": "PASSIVE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "LOW",
"vulnAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"baseScore": 6,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N",
"version": "4.0"
}
}
],
"references": [
{
"name": "https://github.com/rustfs/rustfs/security/advisories/GHSA-x5xv-223c-8vm7",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/rustfs/rustfs/security/advisories/GHSA-x5xv-223c-8vm7"
}
],
"affected": [
{
"vendor": "rustfs",
"product": "rustfs",
"versions": [
{
"version": "< 1.0.0-beta.2",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-05-28T18:41:35.789Z"
},
"descriptions": [
{
"lang": "en",
"value": "RustFS is a distributed object storage system built in Rust. Prior to 1.0.0-beta.2, when RUSTFS_CORS_ALLOWED_ORIGINS is unset, the RustFS S3 listener's ConditionalCorsLayer reflects any request Origin value back as Access-Control-Allow-Origin and also sets Access-Control-Allow-Credentials: true and Access-Control-Allow-Headers: * on responses, including preflight responses and error responses. This creates a permissive cross-domain policy with untrusted origins. A browser visiting an attacker-controlled page can issue credentialed cross-origin requests to a reachable RustFS deployment and read the response when the victim browser has ambient credentials for the RustFS origin, such as saved HTTP Basic Auth credentials, reverse-proxy SSO cookies, or TLS client certificates. This vulnerability is fixed in 1.0.0-beta.2."
}
],
"source": {
"advisory": "GHSA-x5xv-223c-8vm7",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"references": [
{
"url": "https://github.com/rustfs/rustfs/security/advisories/GHSA-x5xv-223c-8vm7",
"tags": [
"exploit"
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-05-28T19:21:52.120285Z",
"id": "CVE-2026-46685",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-05-28T19:22:19.301Z"
}
}
]
}
}