Multiple Vulnerabilities Found in nginx Web Server, Three Rated Critical by F5
F5 disclosed an out-of-band security advisory on October 14, 2026, revealing a total of 11 vulnerabilities across nginx and related products. Five issues affect the core open-source nginx server while six more impact associated offerings including NGINX Gateway Fabric and NGINX Ingress Controller. The flaws can lead to denial of service, remote code execution, authentication bypass, and sensitive information disclosure. Although the official nginx project rates all five core vulnerabilities as Medium severity, F5 assigns a CVSS v4.0 base score of 9.2 to three of them, classifying them as Critical. One example is CVE-2026-15176, a heap buffer overflow in the ngx_http_core_module that triggers under specific URL rewrite and file-path configuration settings.
Security NEXTOct 20, 2026Translated from Japanese