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CVE-2026-40701

🗓️ 13 May 2026 16:16:43Reported by [email protected]Type 
nvd
 nvd🔗 web.nvd.nist.gov👁 4 Views

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.

Related
Refs
ReporterTitlePublishedViews
Family
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
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13 May 2026 16:27Current
CVSS 3.14.8
CVSS 46.3
EPSS0.00044
CWE-416
verify client onocsp onheap after freeresolver usageweb server
4