# 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 heap-use-after-free error in the NGINX worker process. This vulnerability may result in limited modification of data or the NGINX worker process restarting. Note: Software versions which have reached End of Technical Su

- **CVSS:** 4.8 (MEDIUM)
- **EPSS:** 0.0%
- **CWE:** CWE-416

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-40701
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