CVE-2026-42946
A vulnerability exists in the ngx_http_scgi_module and ngx_http_uwsgi_module modules that may result in excessive memory allocation or an over-read of data. When scgi_pass or uwsgi_pass is configured, an unauthenticated attacker with man-in-the-middle (MITM) ability to control responses from an upstream server may be able to read the memory of the NGINX worker process or restart it. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
- CVSS 4.0
- 8.3
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N - CVSS 3.1
- 7.4
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H - EPSS
- 0.9% chance of exploitation in the next 30 days; higher than 60% of CVEs (scores of 2026-10-25)
- CWEs
- CWE-789, CWE-823
- Published
- Modified
- Record from
- the NVD, synced
Affected
- f5:dos
- f5:nginx_gateway_fabric
- f5:nginx_ingress_controller
- f5:nginx_instance_manager
- f5:nginx_open_source
- f5:nginx_plus
- f5:waf