
Critical NGINX Vulnerabilities Expose Web Infrastructure to RCE and TLS Bypass Attacks
NGINX released versions 1.30.6 and 1.31.7 on October 14, 2026, to address five critical vulnerabilities affecting installations since May 2005. The flaws include three memory corruption bugs (CVE-2026-15176, CVE-2026-93479, CVE-2026-97205) that could enable remote code execution, a TLS session forgery vulnerability (CVE-2026-97629) that bypasses client certificate verification, and an HTTP/3 request smuggling issue (CVE-2026-95101). Each vulnerability requires specific configuration directives to exploit, including commonly recommended settings like shared TLS session cache and HTTP/3 support. F5 rates three memory bugs as Critical (9.2 CVSS v4.0), while NGINX considers all five medium severity. This incident highlights ongoing challenges with web infrastructure security, particularly as organizations increasingly rely on reverse proxies and load balancers for cloud-native architectures. The timing coincides with heightened scrutiny of supply chain vulnerabilities and the need for rapid patching cycles in enterprise environments.
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