NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_charset_module module. When content is served or proxied through a location block with both source_charset utf-8; and a charset directive (for example, charset koi8-r;) configured, remote, unauthenticated attackers can send requests (in conjunction with conditions beyond their control) to cause a heap buffer over-read in the NGINX worker process, leading to limited disclosure of memory or a restart.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
References
| Link | Resource |
|---|---|
| https://my.f5.com/manage/s/article/K000161585 | Vendor Advisory |
Configurations
Configuration 1 (hide)
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History
22 Jun 2026, 16:50
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
F5 nginx Open Source
F5 nginx Ingress Controller F5 nginx Instance Manager F5 dos F5 waf F5 nginx Gateway Fabric F5 nginx Plus F5 |
|
| CPE | cpe:2.3:a:f5:waf:*:*:*:*:*:nginx:*:* cpe:2.3:a:f5:nginx_open_source:*:*:*:*:*:*:*:* cpe:2.3:a:f5:nginx_ingress_controller:*:*:*:*:*:*:*:* cpe:2.3:a:f5:nginx_instance_manager:*:*:*:*:*:*:*:* cpe:2.3:a:f5:nginx_plus:*:*:*:*:*:*:*:* cpe:2.3:a:f5:dos:*:*:*:*:*:nginx:*:* cpe:2.3:a:f5:nginx_gateway_fabric:*:*:*:*:*:*:*:* cpe:2.3:a:f5:dos:4.9.0:*:*:*:*:nginx:*:* |
|
| References | () https://my.f5.com/manage/s/article/K000161585 - Vendor Advisory |
17 Jun 2026, 17:17
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-06-17 15:16
Updated : 2026-06-22 16:50
NVD link : CVE-2026-48142
Mitre link : CVE-2026-48142
CVE.ORG link : CVE-2026-48142
JSON object : View
Products Affected
f5
- dos
- nginx_open_source
- nginx_plus
- nginx_ingress_controller
- nginx_gateway_fabric
- nginx_instance_manager
- waf
CWE
CWE-125
Out-of-bounds Read