CVE-2026-40460

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://my.f5.com/manage/s/article/K000161068	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:f5:dos::::::nginx::*
	cpe:2.3:a:f5:dos:4.8.0:::::nginx::
	cpe:2.3:a:f5:nginx_gateway_fabric::::::::
	cpe:2.3:a:f5:nginx_gateway_fabric::::::::
	cpe:2.3:a:f5:nginx_ingress_controller::::::::
	cpe:2.3:a:f5:nginx_ingress_controller::::::::
	cpe:2.3:a:f5:nginx_ingress_controller::::::::
	cpe:2.3:a:f5:nginx_instance_manager::::::::
	cpe:2.3:a:f5:nginx_open_source::::::::
	cpe:2.3:a:f5:nginx_plus::::::::
	cpe:2.3:a:f5:waf::::::nginx::*
	cpe:2.3:a:f5:waf::::::nginx::*
	cpe:2.3:a:f5:waf::::::nginx::*

History

26 Oct 2026, 17:10

Type	Values Removed	Values Added
Summary		(es) Cuando NGINX Plus o NGINX Open Source están configurados para usar el módulo HTTP/3 QUIC, un atacante podría falsificar su dirección IP de origen, lo que permitiría la elusión de la autorización o de la limitación de velocidad. Nota: Las versiones de software que han alcanzado el Fin del Soporte Técnico (EoTS) no se evalúan.

Information

Published : 2026-05-13 16:16

Updated : 2026-10-26 17:10

NVD link : CVE-2026-40460

Mitre link : CVE-2026-40460

CVE.ORG link : CVE-2026-40460

JSON object : View

Products Affected

f5

nginx_plus
nginx_ingress_controller
nginx_instance_manager
nginx_gateway_fabric
nginx_open_source
waf
dos

CWE

CWE-290

Authentication Bypass by Spoofing

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