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.
Fix
Patch, vendor advisory and mitigation references on NVD 1
- https://my.f5.com/manage/s/article/K000162101 Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 6.3 · f5NVD modified 2026-10-24 21:10
Affected (CPE criteria) 14
cpe:2.3:a:f5:nginx_gateway_fabric:*:*:*:*:*:*:*:*cpe:2.3:a:f5:nginx_ingress_controller:*:*:*:*:continuous_releases:*:*:*cpe:2.3:a:f5:nginx_ingress_controller:*:*:*:*:long-term_support:*:*:*cpe:2.3:a:f5:nginx_ingress_controller:4.0.0:*:*:*:continuous_releases:*:*:*cpe:2.3:a:f5:nginx_ingress_controller:4.0.1:*:*:*:continuous_releases:*:*:*cpe:2.3:a:f5:nginx_plus:*:*:*:*:*:*:*:*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:*:*:*:*:*:*cpe:2.3:a:f5:waf:*:*:*:*:*:nginx:*:*
References 1
- https://my.f5.com/manage/s/article/K000162101 Vendor Advisory