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CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2026-28755

NGINX ngx_stream_ssl_module vulnerability

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Status
Published
Published
Updated
Assigning organization
f5

Description

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

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

F5 NGINX Open Source

Default version status: unknown

  • 1.29.0 to < 1.29.7affected
  • 1.27.2 to < 1.28.3affected

F5 NGINX Plus

Default version status: unknown

  • R36 to < R36 P3affected
  • R35 to < R35 P2affected
  • R34 to < *affected
  • R33 to < *affected

References