{"schema_version":1,"title":"F5 NGINX Ingress Controller vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 8 vulnerabilities in F5 NGINX Ingress Controller: 0 in the last 7 days and 2 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-55723, was published on 15 July 2026.","url":"https://junglewise.ai/threats/technologies/nginx-ingress-controller","json_url":"https://junglewise.ai/threats/technologies/nginx-ingress-controller.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/nginx-ingress-controller","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":2,"all_time":8,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":2,"last_365_days":8},"latest":[{"cve":"CVE-2026-55723","cvss":8.3,"slug":"cve-2026-55723-f5-nginx-ingress-controller-configuration-injection-in-crds-and","title":"F5 NGINX Ingress Controller configuration injection in CRDs and annotations","severity":"high","exploited":false,"published_at":"2026-07-15T15:16:45.327+00:00","url":"https://junglewise.ai/threats/cve-2026-55723-f5-nginx-ingress-controller-configuration-injection-in-crds-and"},{"cve":"CVE-2026-52865","cvss":6.5,"slug":"cve-2026-52865-f5-nginx-ingress-controller-null-pointer-dereference-in-ingress","title":"F5 NGINX Ingress Controller NULL pointer dereference in Ingress resources","severity":"medium","exploited":false,"published_at":"2026-07-15T15:16:44.587+00:00","url":"https://junglewise.ai/threats/cve-2026-52865-f5-nginx-ingress-controller-null-pointer-dereference-in-ingress"},{"cve":"CVE-2026-42946","cvss":6.5,"epss":0.0084,"slug":"cve-2026-42946-f5-nginx-memory-over-read-in-scgi-and-uwsgi-modules","title":"F5 NGINX memory over-read in SCGI and uWSGI modules","severity":"medium","exploited":false,"published_at":"2026-05-13T16:16:50.34+00:00","url":"https://junglewise.ai/threats/cve-2026-42946-f5-nginx-memory-over-read-in-scgi-and-uwsgi-modules"},{"cve":"CVE-2026-42945","cvss":8.1,"epss":0.0027,"slug":"cve-2026-42945-nginx-heap-buffer-overflow-in-ngx-http-rewrite-module","title":"NGINX heap buffer overflow in ngx_http_rewrite_module","severity":"high","exploited":false,"published_at":"2026-05-13T16:16:50.19+00:00","url":"https://junglewise.ai/threats/cve-2026-42945-nginx-heap-buffer-overflow-in-ngx-http-rewrite-module"},{"cve":"CVE-2026-42934","cvss":4.8,"epss":0.0072,"slug":"cve-2026-42934-f5-nginx-heap-buffer-over-read-in-ngx-http-charset-module","title":"F5 NGINX heap buffer over-read in ngx_http_charset_module","severity":"medium","exploited":false,"published_at":"2026-05-13T16:16:49.91+00:00","url":"https://junglewise.ai/threats/cve-2026-42934-f5-nginx-heap-buffer-over-read-in-ngx-http-charset-module"},{"cve":"CVE-2026-42926","cvss":5.8,"epss":0.0033,"slug":"cve-2026-42926-f5-nginx-open-source-header-injection-in-http-2-proxying","title":"F5 NGINX Open Source header injection in HTTP/2 proxying","severity":"medium","exploited":false,"published_at":"2026-05-13T16:16:49.64+00:00","url":"https://junglewise.ai/threats/cve-2026-42926-f5-nginx-open-source-header-injection-in-http-2-proxying"},{"cve":"CVE-2026-40701","cvss":4.8,"epss":0.0068,"slug":"cve-2026-40701-f5-nginx-heap-use-after-free-in-ngx-http-ssl-module","title":"F5 NGINX heap-use-after-free in ngx_http_ssl_module","severity":"medium","exploited":false,"published_at":"2026-05-13T16:16:43.863+00:00","url":"https://junglewise.ai/threats/cve-2026-40701-f5-nginx-heap-use-after-free-in-ngx-http-ssl-module"},{"cve":"CVE-2026-40460","cvss":6.5,"epss":0.0039,"slug":"cve-2026-40460-f5-nginx-ip-address-spoofing-in-http-3-quic-module","title":"F5 NGINX IP address spoofing in HTTP/3 QUIC module","severity":"medium","exploited":false,"published_at":"2026-05-13T16:16:42.823+00:00","url":"https://junglewise.ai/threats/cve-2026-40460-f5-nginx-ip-address-spoofing-in-http-3-quic-module"}],"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":2},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"F5 BIG-IP","slug":"big-ip","vulnerabilities":41,"url":"https://junglewise.ai/threats/technologies/big-ip"},{"name":"F5 BIG-IP Access Policy Manager","slug":"big-ip-access-policy-manager","vulnerabilities":30,"url":"https://junglewise.ai/threats/technologies/big-ip-access-policy-manager"},{"name":"F5 BIG-IP Advanced Firewall Manager","slug":"big-ip-advanced-firewall-manager","vulnerabilities":28,"url":"https://junglewise.ai/threats/technologies/big-ip-advanced-firewall-manager"},{"name":"F5 BIG-IP Local Traffic Manager","slug":"big-ip-local-traffic-manager","vulnerabilities":27,"url":"https://junglewise.ai/threats/technologies/big-ip-local-traffic-manager"},{"name":"F5 BIG-IP Advanced WAF","slug":"big-ip-advanced-waf","vulnerabilities":19,"url":"https://junglewise.ai/threats/technologies/big-ip-advanced-waf"},{"name":"F5 NGINX Plus","slug":"nginx-plus","vulnerabilities":14,"url":"https://junglewise.ai/threats/technologies/nginx-plus"},{"name":"F5 Nginx-Gateway-Fabric","slug":"nginx-gateway-fabric","vulnerabilities":8,"url":"https://junglewise.ai/threats/technologies/nginx-gateway-fabric"},{"name":"F5 BIG-IQ","slug":"big-iq","vulnerabilities":7,"url":"https://junglewise.ai/threats/technologies/big-iq"},{"name":"F5 BIG-IP DNS","slug":"big-ip-dns","vulnerabilities":6,"url":"https://junglewise.ai/threats/technologies/big-ip-dns"},{"name":"F5 BIG-IQ Centralized Management","slug":"big-iq-centralized-management","vulnerabilities":4,"url":"https://junglewise.ai/threats/technologies/big-iq-centralized-management"},{"name":"F5 BIG-IP APM","slug":"big-ip-apm","vulnerabilities":3,"url":"https://junglewise.ai/threats/technologies/big-ip-apm"},{"name":"F5 iControl REST","slug":"icontrol-rest","vulnerabilities":3,"url":"https://junglewise.ai/threats/technologies/icontrol-rest"}],"technology":{"hub":true,"name":"F5 NGINX Ingress Controller","slug":"nginx-ingress-controller","vendor":{"name":"F5","slug":"f5","url":"https://junglewise.ai/threats/vendors/f5"},"aliases":[],"category":"web-server","homepage":"https://www.nginx.com/products/nginx-ingress-controller/","repo_url":"https://github.com/nginxinc/kubernetes-ingress","description":"An Ingress controller for Kubernetes that uses NGINX as a reverse proxy and load balancer.","url":"https://junglewise.ai/threats/technologies/nginx-ingress-controller"},"most_severe":[{"cve":"CVE-2026-55723","cvss":8.3,"slug":"cve-2026-55723-f5-nginx-ingress-controller-configuration-injection-in-crds-and","title":"F5 NGINX Ingress Controller configuration injection in CRDs and annotations","severity":"high","exploited":false,"published_at":"2026-07-15T15:16:45.327+00:00","url":"https://junglewise.ai/threats/cve-2026-55723-f5-nginx-ingress-controller-configuration-injection-in-crds-and"},{"cve":"CVE-2026-42945","cvss":8.1,"epss":0.0027,"slug":"cve-2026-42945-nginx-heap-buffer-overflow-in-ngx-http-rewrite-module","title":"NGINX heap buffer overflow in ngx_http_rewrite_module","severity":"high","exploited":false,"published_at":"2026-05-13T16:16:50.19+00:00","url":"https://junglewise.ai/threats/cve-2026-42945-nginx-heap-buffer-overflow-in-ngx-http-rewrite-module"},{"cve":"CVE-2026-42946","cvss":6.5,"epss":0.0084,"slug":"cve-2026-42946-f5-nginx-memory-over-read-in-scgi-and-uwsgi-modules","title":"F5 NGINX memory over-read in SCGI and uWSGI modules","severity":"medium","exploited":false,"published_at":"2026-05-13T16:16:50.34+00:00","url":"https://junglewise.ai/threats/cve-2026-42946-f5-nginx-memory-over-read-in-scgi-and-uwsgi-modules"},{"cve":"CVE-2026-40460","cvss":6.5,"epss":0.0039,"slug":"cve-2026-40460-f5-nginx-ip-address-spoofing-in-http-3-quic-module","title":"F5 NGINX IP address spoofing in HTTP/3 QUIC module","severity":"medium","exploited":false,"published_at":"2026-05-13T16:16:42.823+00:00","url":"https://junglewise.ai/threats/cve-2026-40460-f5-nginx-ip-address-spoofing-in-http-3-quic-module"},{"cve":"CVE-2026-52865","cvss":6.5,"slug":"cve-2026-52865-f5-nginx-ingress-controller-null-pointer-dereference-in-ingress","title":"F5 NGINX Ingress Controller NULL pointer dereference in Ingress resources","severity":"medium","exploited":false,"published_at":"2026-07-15T15:16:44.587+00:00","url":"https://junglewise.ai/threats/cve-2026-52865-f5-nginx-ingress-controller-null-pointer-dereference-in-ingress"},{"cve":"CVE-2026-42926","cvss":5.8,"epss":0.0033,"slug":"cve-2026-42926-f5-nginx-open-source-header-injection-in-http-2-proxying","title":"F5 NGINX Open Source header injection in HTTP/2 proxying","severity":"medium","exploited":false,"published_at":"2026-05-13T16:16:49.64+00:00","url":"https://junglewise.ai/threats/cve-2026-42926-f5-nginx-open-source-header-injection-in-http-2-proxying"},{"cve":"CVE-2026-42934","cvss":4.8,"epss":0.0072,"slug":"cve-2026-42934-f5-nginx-heap-buffer-over-read-in-ngx-http-charset-module","title":"F5 NGINX heap buffer over-read in ngx_http_charset_module","severity":"medium","exploited":false,"published_at":"2026-05-13T16:16:49.91+00:00","url":"https://junglewise.ai/threats/cve-2026-42934-f5-nginx-heap-buffer-over-read-in-ngx-http-charset-module"},{"cve":"CVE-2026-40701","cvss":4.8,"epss":0.0068,"slug":"cve-2026-40701-f5-nginx-heap-use-after-free-in-ngx-http-ssl-module","title":"F5 NGINX heap-use-after-free in ngx_http_ssl_module","severity":"medium","exploited":false,"published_at":"2026-05-13T16:16:43.863+00:00","url":"https://junglewise.ai/threats/cve-2026-40701-f5-nginx-heap-use-after-free-in-ngx-http-ssl-module"}],"generated_at":"2026-09-26T09:11:00.170868+00:00"}