cvedb.io
CVE-2026-28755
MEDIUM · CVSS 5.4
EPSS exploitation probability: 0%
Published 2026-03-24T15:16:33.773 · Last modified 2026-06-17T10:28:59.433

Summary

NGINX Plus and NGINX Open Source have a vulnerability in the ngx_stream_ssl_module module due to the improper handling of revoked certificates when configured with the ssl_verify_client on and ssl_ocsp on directives, allowing the TLS handshake to succeed even after an OCSP check identifies the certificate as revoked.   Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected products

f5 — nginx_plus

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.