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.
Scores
CVSS v3
5.4
EPSS
0.0001
EPSS Percentile
2.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-863
Status
published
Products (11)
F5/NGINX Open Source
1.27.2 - 1.28.3
F5/NGINX Open Source
1.29.0 - 1.29.7
F5/NGINX Plus
R33
F5/NGINX Plus
R34
F5/NGINX Plus
R35 - R35 P2
F5/NGINX Plus
R36 - R36 P3
f5/nginx_open_source
0.5.13 - 0.9.7
f5/nginx_plus
r33 (4 CPE variants)
f5/nginx_plus
r34 (3 CPE variants)
f5/nginx_plus
r35 p1
... and 1 more
Published
Mar 24, 2026
Tracked Since
Mar 24, 2026