CVE-2026-40701

🗓️ 13 May 2026 16:16:43Reported by [email protected]Type

Unauthenticated attacker may trigger heap after free in the web server when ssl_verify_client is on or optional and ssl_ocsp is on or a resolver is used, possibly causing data modification or worker restart.

Reporter	Title	Published	Views	Family All 94
FreeBSD	nginx-devel -- multiple vulnerabilities	13 May 202600:00	–	freebsd
FreeBSD	www/nginx -- Remote Code Execution/DoS	14 May 202600:00	–	freebsd
Tenable Nessus	Amazon Linux 2023 : nginx, nginx-all-modules, nginx-core (ALAS2023-2026-1714)	27 May 202600:00	–	nessus
Tenable Nessus	Amazon Linux 2 : nginx, --advisory ALAS2NGINX1-2026-012 (ALASNGINX1-2026-012)	27 May 202600:00	–	nessus
Tenable Nessus	Debian dla-4589 : libnginx-mod-http-auth-pam - security update	18 May 202600:00	–	nessus
Tenable Nessus	Debian dsa-6278 : libnginx-mod-http-geoip - security update	16 May 202600:00	–	nessus
Tenable Nessus	Fedora 44 : nginx / nginx-mod-brotli / nginx-mod-fancyindex / etc (2026-094eb13bb1)	15 May 202600:00	–	nessus
Tenable Nessus	Fedora 42 : nginx / nginx-mod-brotli / nginx-mod-fancyindex / etc (2026-38623b4fed)	15 May 202600:00	–	nessus
Tenable Nessus	Fedora 43 : nginx / nginx-mod-brotli / nginx-mod-fancyindex / etc (2026-fb53cb4d67)	15 May 202600:00	–	nessus
Tenable Nessus	FreeBSD : nginx-devel -- multiple vulnerabilities (1ed77d8e-53bb-11f1-b339-3497f65b111b)	20 May 202600:00	–	nessus