Medium
Security advisory
When NGINX Plus or NGINX Open Source are configured to use the HTTP/3 QUIC module, an attacker may be able to spoof their source IP address allowing for bypass of authorization or bypass of rate limiting. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-40460
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 19:37 UTC · Revision 1
Source evidence
When NGINX Plus or NGINX Open Source are configured to use the HTTP/3 QUIC module, an attacker may be able to spoof their source IP address allowing for bypass of authorization or bypass of rate limiting. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
osv:CVE-2026-40460
Complete source record
{
"id": "091158a5a74f2974a6c73790172ce786d12333a5adb12e6640ef96e58e47f48c",
"url": "https://osv.dev/vulnerability/CVE-2026-40460",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2026-40460",
"summary": "When NGINX Plus or NGINX Open Source are configured to use the HTTP/3 QUIC module, an attacker may be able to spoof their source IP address allowing for bypass of authorization or bypass of rate limiting. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.",
"evidence": "osv:CVE-2026-40460",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2026-40460",
"aliases": [
"BIT-nginx-2026-40460",
"BIT-nginx-gateway-2026-40460",
"CVE-2026-40460"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/nginx/nginx",
"type": "GIT",
"events": [
{
"introduced": "05760b62e9799df559246af9f65c9e514617f558"
},
{
"last_affected": "6e14e954aaacce9a433d9b07b4653809c7594ab8"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:f5:nginx_open_source:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.25.0"
},
{
"last_affected": "1.30.0"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"release-1.30.0",
"release-1.29.8",
"release-1.29.7",
"release-1.29.6",
"release-1.29.5",
"release-1.29.4",
"release-1.29.3",
"release-1.29.2",
"release-1.29.1",
"release-1.29.0",
"release-1.27.5",
"release-1.27.4",
"release-1.27.3",
"release-1.27.2",
"release-1.27.1",
"release-1.27.0",
"release-1.25.5",
"release-1.25.4",
"release-1.25.3",
"release-1.25.2",
"release-1.25.1",
"release-1.25.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40460.json"
}
},
{
"ranges": [
{
"repo": "https://github.com/nginx/nginx-gateway-fabric",
"type": "GIT",
"events": [
{
"introduced": "3a372747333fb1db372af7cf0b18ed7eef7c91f7"
},
{
"last_affected": "532db6a20b2912fe397211eef9f8d564d46a4bdd"
},
{
"introduced": "7dad8b31e3f0c3eadce36fed8c276e83e6583d24"
},
{
"last_affected": "95a66d8cec0ce98e1985aeab728317c5ba7ec0c6"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:f5:nginx_gateway_fabric:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.3.0"
},
{
"last_affected": "1.6.2"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:f5:nginx_gateway_fabric:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.0"
},
{
"last_affected": "2.6.0"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40460.json"
}
}
],
"modified": "2026-10-28T02:30:38.583383076Z",
"provider": "osv",
"references": [
"https://my.f5.com/manage/s/article/K000161068"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:f5:dos:*:*:*:*:*:nginx:*:*"
],
"vendor_product": "f5:dos",
"extracted_events": [
{
"range": [
{
"introduced": "4.3.0"
},
{
"last_affected": "4.7.0"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:f5:nginx_ingress_controller:*:*:*:*:*:*:*:*"
],
"vendor_product": "f5:nginx_ingress_controller",
"extracted_events": [
{
"range": [
{
"introduced": "3.5.0"
},
{
"last_affected": "3.7.2"
},
{
"introduced": "4.0.0"
},
{
"last_affected": "4.0.1"
},
{
"introduced": "5.0.0"
},
{
"last_affected": "5.4.2"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:f5:nginx_instance_manager:*:*:*:*:*:*:*:*"
],
"vendor_product": "f5:nginx_instance_manager",
"extracted_events": [
{
"range": [
{
"introduced": "2.16.0"
},
{
"last_affected": "2.22.0"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:f5:nginx_plus:*:*:*:*:*:*:*:*"
],
"vendor_product": "f5:nginx_plus",
"extracted_events": [
{
"range": [
{
"introduced": "r32"
},
{
"last_affected": "r36"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:f5:waf:*:*:*:*:*:nginx:*:*"
],
"vendor_product": "f5:waf",
"extracted_events": [
{
"range": [
{
"introduced": "4.9.0"
},
{
"last_affected": "4.16.0"
},
{
"introduced": "5.1.0"
},
{
"last_affected": "5.8.0"
},
{
"introduced": "5.9.0"
},
{
"last_affected": "5.12.1"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:f5:dos:4.8.0:*:*:*:*:nginx:*:*"
],
"vendor_product": "f5:dos",
"extracted_events": [
{
"range": [
{
"introduced": "4.8.0"
},
{
"last_affected": "4.8.0"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2026-40460",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 506245,
"published_at": "2026-05-13T16:16:42.823+00:00"
}