F5: >> Nginx Instance Manager Security Vulnerabilities
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.
CVSS Score
6.3
EPSS Score
0.007
Published
2026-05-13
When NGINX Plus or NGINX Open Source are configured to use the HTTP/3 QUIC module, an attacker may be able to spoof their source IP address allowing for bypass of authorization or bypass of rate limiting. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
CVSS Score
6.9
EPSS Score
0.004
Published
2026-05-13
A vulnerability exists in NGINX OSS and NGINX Plus when configured to proxy to upstream Transport Layer Security (TLS) servers. An attacker with a man-in-the-middle (MITM) position on the upstream server side—along with conditions beyond the attacker's control—may be able to inject plain text data into the response from an upstream proxied server. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
CVSS Score
8.2
EPSS Score
0.003
Published
2026-02-04
A session fixation issue was discovered in the NGINX OpenID Connect reference implementation, where a nonce was not checked at login time. This flaw allows an attacker to fix a victim's session to an attacker-controlled account. As a result, although the attacker cannot log in as the victim, they can force the session to associate it with the attacker-controlled account, leading to potential misuse of the victim's session.
CVSS Score
5.1
EPSS Score
0.003
Published
2024-11-06
NGINX Agent's "config_dirs" restriction feature allows a highly privileged attacker to gain the ability to write/overwrite files outside of the designated secure directory.
CVSS Score
6.9
EPSS Score
0.005
Published
2024-08-22
NGINX Management Suite default file permissions are set such that an authenticated attacker may be able to modify sensitive files on NGINX Instance Manager and NGINX API Connectivity Manager.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
CVSS Score
7.1
EPSS Score
0.002
Published
2023-05-03
NGINX Management Suite may allow an authenticated attacker to gain access to configuration objects outside of their assigned environment.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
CVSS Score
8.1
EPSS Score
0.005
Published
2023-05-03
Insertion of Sensitive Information into log file vulnerability in NGINX Agent. NGINX Agent version 2.0 before 2.23.3 inserts sensitive information into a log file. An authenticated attacker with local access to read agent log files may gain access to private keys. This issue is only exposed when the non-default trace level logging is enabled. Note: NGINX Agent is included with NGINX Instance Manager and used in conjunction with NGINX API Connectivity Manager, and NGINX Management Suite Security Monitoring.
CVSS Score
5.5
EPSS Score
0.002
Published
2023-03-29
In versions 2.x before 2.3.1 and all versions of 1.x, when NGINX Instance Manager is in use, undisclosed requests can cause an increase in disk resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
CVSS Score
6.5
EPSS Score
0.007
Published
2022-08-04
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