Bug 2450779 (CVE-2026-28755) - CVE-2026-28755 NGINX: NGINX: Certificate revocation bypass when OCSP is enabled
Summary: CVE-2026-28755 NGINX: NGINX: Certificate revocation bypass when OCSP is enabled
Keywords:
Status: NEW
Alias: CVE-2026-28755
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2450844
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-03-24 15:02 UTC by OSIDB Bzimport
Modified: 2026-03-24 20:47 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
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Description OSIDB Bzimport 2026-03-24 15:02:00 UTC 
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_stream_ssl_module due to the improper handling of revoked certificates when configured with ssl_verify_client on and ssl_ocsp on, 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.
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