When NGINX Plus is configured to use the Message Queuing Telemetry Transport (MQTT) filter module (ngx_stream_mqtt_filter_module), unauthenticated attackers can send requests with conditions beyond the attacker's control to cause a heap buffer over-read in the NGINX worker process, leading to a restart.
Impact: This vulnerability may allow remote unauthenticated attackers to have limited control to restart the NGINX worker process. There is no control plane exposure; this is a data plane issue only.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
{
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:f5:nginx_ingress_controller:*:*:*:*:continuous_releases:*:*:*",
"cpe:2.3:a:f5:nginx_ingress_controller:*:*:*:*:long-term_support:*:*:*"
],
"extracted_events": [
{
"introduced": "3.5.0"
},
{
"last_affected": "3.7.2"
},
{
"introduced": "5.0.0"
},
{
"fixed": "5.5.3"
},
{
"introduced": "2026-lts-r1"
},
{
"fixed": "2026-lts-r4"
}
],
"source": "CPE_RANGE",
"vendor_product": "f5:nginx_ingress_controller"
},
{
"cpes": [
"cpe:2.3:a:f5:nginx_plus:*:*:*:*:*:*:*:*"
],
"extracted_events": [
{
"introduced": "37.0.0.1"
},
{
"fixed": "37.0.3.1"
},
{
"introduced": "r33"
},
{
"fixed": "r36"
}
],
"source": "CPE_RANGE",
"vendor_product": "f5:nginx_plus"
},
{
"cpes": [
"cpe:2.3:a:f5:waf:*:*:*:*:*:nginx:*:*"
],
"extracted_events": [
{
"introduced": "4.11.0"
},
{
"last_affected": "4.16.0"
},
{
"introduced": "5.2.0"
},
{
"last_affected": "5.8.0"
},
{
"introduced": "5.9.0"
},
{
"fixed": "5.13.4"
}
],
"source": "CPE_RANGE",
"vendor_product": "f5:waf"
},
{
"cpes": [
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"cpe:2.3:a:f5:nginx_ingress_controller:4.0.1:*:*:*:continuous_releases:*:*:*"
],
"extracted_events": [
{
"introduced": "4.0.0"
},
{
"last_affected": "4.0.0"
},
{
"introduced": "4.0.1"
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{
"last_affected": "4.0.1"
}
],
"source": "CPE_STRING",
"vendor_product": "f5:nginx_ingress_controller"
},
{
"cpes": [
"cpe:2.3:a:f5:nginx_plus:r36:-:*:*:*:*:*:*",
"cpe:2.3:a:f5:nginx_plus:r36:p1:*:*:*:*:*:*",
"cpe:2.3:a:f5:nginx_plus:r36:p2:*:*:*:*:*:*",
"cpe:2.3:a:f5:nginx_plus:r36:p3:*:*:*:*:*:*",
"cpe:2.3:a:f5:nginx_plus:r36:p4:*:*:*:*:*:*",
"cpe:2.3:a:f5:nginx_plus:r36:p5:*:*:*:*:*:*",
"cpe:2.3:a:f5:nginx_plus:r36:p6:*:*:*:*:*:*"
],
"extracted_events": [
{
"introduced": "r36-NA"
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{
"last_affected": "r36-NA"
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{
"introduced": "r36-p1"
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{
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{
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{
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{
"introduced": "r36-p3"
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{
"last_affected": "r36-p3"
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{
"introduced": "r36-p4"
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{
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{
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{
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{
"introduced": "r36-p6"
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{
"last_affected": "r36-p6"
}
],
"source": "CPE_STRING",
"vendor_product": "f5:nginx_plus"
}
]
}{
"cpe": "cpe:2.3:a:f5:nginx_gateway_fabric:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "1.3.0"
},
{
"last_affected": "1.6.2"
},
{
"introduced": "2.0.0"
},
{
"fixed": "2.6.7"
}
],
"source": "CPE_RANGE"
}