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.
Published:May 13, 2026
Last Modified:Jun 16, 2026
EPS:May 13, 2026
EPSS Score:0.00843
CVSS Score:6.5
Affected Products
Vendor
Product
Action
Vendor
F5
Product
Dos
F5
Dos
Vendor
F5
Product
Nginx App Protect Dos
F5
Nginx App Protect Dos
Vendor
F5
Product
Nginx App Protect Waf
F5
Nginx App Protect Waf
Vendor
F5
Product
Nginx Gateway Fabric
F5
Nginx Gateway Fabric
Vendor
F5
Product
Nginx Ingress Controller
F5
Nginx Ingress Controller
Vendor
F5
Product
Nginx Instance Manager
F5
Nginx Instance Manager
Vendor
F5
Product
Nginx Open Source
F5
Nginx Open Source
Vendor
F5
Product
Nginx Plus
F5
Nginx Plus
Vendor
F5
Product
Waf
F5
Waf
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Related CVEs
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
