SEPTEMBER 22, 2026
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Case File

CVE-2026-40701

MEDIUM · CVSS 4.8 EPSS 0.69%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-05-13 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.8. It affects Nginx. Exploitation may require the attacker to be authenticated.

CVE
CVE-2026-40701
Severity
MEDIUM
CVSS
4.8
EPSS
0.69%
Nginx

Original NVD Description

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 Support (EoTS) are not evaluated.

Related CVEs

Other vulnerabilities affecting the same vendor(s)