All vulnerabilities

Servers and applications

CVE-2026-40701

NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_ssl_module module when the ssl_verify_client directive is set to "on" or "optional," and the ssl_ocsp directive is set to "on" or the leaf parameters are configured with a resolver. With this configuration, an unauthenticated attacker can send requests along with conditions beyond its control that may cause a…

Severity
Medium 6.3
Published
13 May 2026
Last changed
23 Jun 2026
Added to UpHeron
21 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
nginxServers and applications · cpe:a:f5:nginx_open_source
  • From 1.19.0 up to 1.30.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-40701
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-40701