CVE-2026-42946
HIGH
MEDIUM
Priority: 0.08
BB Relevance:
77/100
Published: 2026-05-13
Modified: 2026-10-26
First seen: 2026-10-29
Status: active
Attack Surface
Network
Low Complexity
No Auth
No Interaction
Conf. Impact
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
None
UI:
None
S:
X
AT:
Present
VC:
High
VI:
None
VA:
Low
Description
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.
Affected Software (14)
| Vendor | Product | Version |
|---|---|---|
| f5 | dos | 4.3.0 – 4.7.0 |
| f5 | dos | 4.8.0 |
| f5 | nginx_gateway_fabric | 1.3.0 – 1.6.2 |
| f5 | nginx_gateway_fabric | 2.0.0 – 2.6.0 |
| f5 | nginx_ingress_controller | 3.5.0 – 3.7.2 |
| f5 | nginx_ingress_controller | 4.0.0 – 4.0.1 |
| f5 | nginx_ingress_controller | 5.0.0 – 5.4.2 |
| f5 | nginx_instance_manager | 2.16.0 – 2.22.0 |
| f5 | nginx_open_source | 0.8.42 – 0.9.7 |
| f5 | nginx_open_source | 1.0.0 – 1.30.0 |
| f5 | nginx_plus | r32 – r36 |
| f5 | waf | 4.9.0 – 4.16.0 |
| f5 | waf | 5.1.0 – 5.8.0 |
| f5 | waf | 5.9.0 – 5.12.1 |
References & Advisories (1)
Mitigation
Vendor Advisory