F5 Patches Critical, High-Severity NGINX Vulnerabilities

Critical flaws in NGINX could allow remote, unauthenticated attackers to cause a restart and potentially execute arbitrary code. The post F5 Patches Critical, High-Severity NGINX Vulnerabilities appeared first on SecurityWeek .

The article reports that F5 has released patches for critical and high-severity vulnerabilities in NGINX components, including a heap buffer overflow in the ngx_http_rewrite_module (CVE-2026-42945, also dubbed NGINX Rift) that can enable unauthenticated remote code execution or denial-of-service via crafted HTTP requests.[4][5] F5 advisories indicate a broad impact across NGINX Open Source, NGINX Plus, and related products such as NGINX Ingress Controller, NGINX App Protect WAF/DoS, and NGINX Gateway Fabric, with updated versions issued to remediate the flaws.[1][5][7] From a CyberSE.AI perspective, these are classic software supply-chain and infrastructure risks: any AI agent platform, API gateway, or model-serving stack built on affected NGINX versions inherits exposure to remote compromise, which can lead to downstream model tampering, data exfiltration, or abuse of AI-powered endpoints. Organizations should integrate NGINX component versions into their AI SBOM, enforce timely patch management for underlying web/proxy layers, and include these CVEs in AI security readiness and continuous hardening plans.