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CVE-2026-42946

NGINX ngx_http_scgi_module and ngx_http_uwsgi_module vulnerability

Published: May 13, 2026Updated: Jun 18, 2026 Sources: CVE List NVD BDUCWE-789
6.5MEDIUM
NVD MITRE
EPSS Score
0.9%
Top 43.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:HI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:LAvailability
Low
Open in CVSS calculator →

Weaknesses

CWE-789CWE-823

Affected Products

dosf5
On-premNetwork Device
Networking Infrastructure / network-management
nginx gateway fabricf5
On-premNetwork Device
Networking Infrastructure / load-balancer-proxy
nginx ingress controllerf5
On-premNetwork Device
Networking Infrastructure / load-balancer-proxy
nginx instance managerf5
On-prem
Networking Infrastructure / load-balancer-proxy
nginx open sourcef5
On-premWeb App
Networking Infrastructure / load-balancer-proxy
f5commercialUSNetworking Infrastructure
and 18 more affected products View all →

Exploitability

Official Patch Available
Workaround Available

References

https://my.f5.com/manage/s/article/K000161027
my.f5.com
https://my.f5.com/manage/s/article/K000161027
my.f5.com
https://angie.software/angie/docs/pro_changes/
angie.software
and 4 more references View all →

Timeline

Published
May 13, 2026
Last Updated
Jun 18, 2026

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