CVE-2026-56434
Gravedad CVSS v4.0:
ALTA
Tipo:
CWE-416
Utilización después de liberación
Fecha de publicación:
15/07/2026
Última modificación:
10/08/2026
Descripción
*** Pendiente de traducción *** NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_ssi_module module. This vulnerability may exist when the Server-Side Includes (SSI), proxy_pass, and proxy_buffering off directives are configured. With this configuration, an unauthenticated attacker with man-in-the-middle (MITM) ability to control responses from an upstream server may be able to cause a use-after-free in the NGINX worker process. This issue may lead to limited modification of memory or a restart of the NGINX worker process.<br />
<br />
Impact:<br />
This vulnerability may allow remote attackers to have limited control to modify memory contents or restart the NGINX worker process. There is no control plane exposure; this is a data plane issue only.<br />
<br />
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Impacto
Puntuación base 4.0
8.30
Gravedad 4.0
ALTA
Puntuación base 3.x
6.50
Gravedad 3.x
MEDIA
Productos y versiones vulnerables
| CPE | Desde | Hasta |
|---|---|---|
| cpe:2.3:a:f5:nginx_gateway_fabric:*:*:*:*:*:*:*:* | 1.3.0 (incluyendo) | 1.6.2 (incluyendo) |
| cpe:2.3:a:f5:nginx_gateway_fabric:*:*:*:*:*:*:*:* | 2.0.0 (incluyendo) | 2.6.7 (excluyendo) |
| cpe:2.3:a:f5:nginx_ingress_controller:*:*:*:*:continuous_releases:*:*:* | 3.5.0 (incluyendo) | 3.7.2 (incluyendo) |
| cpe:2.3:a:f5:nginx_ingress_controller:*:*:*:*:continuous_releases:*:*:* | 5.0.0 (incluyendo) | 5.5.3 (excluyendo) |
| cpe:2.3:a:f5:nginx_ingress_controller:*:*:*:*:long-term_support:*:*:* | 2026-lts-r1 (incluyendo) | 2026-lts-r4 (excluyendo) |
| cpe:2.3:a:f5:nginx_ingress_controller:4.0.0:*:*:*:continuous_releases:*:*:* | ||
| cpe:2.3:a:f5:nginx_ingress_controller:4.0.1:*:*:*:continuous_releases:*:*:* | ||
| cpe:2.3:a:f5:nginx_plus:*:*:*:*:*:*:*:* | 37.0.0.1 (incluyendo) | 37.0.3.1 (excluyendo) |
| cpe:2.3:a:f5:nginx_plus:*:*:*:*:*:*:*:* | r33 (incluyendo) | r36 (excluyendo) |
| cpe:2.3:a:f5:nginx_plus:r36:-:*:*:*:*:*:* | ||
| cpe:2.3:a:f5:nginx_plus:r36:p1:*:*:*:*:*:* | ||
| cpe:2.3:a:f5:nginx_plus:r36:p2:*:*:*:*:*:* | ||
| cpe:2.3:a:f5:nginx_plus:r36:p3:*:*:*:*:*:* | ||
| cpe:2.3:a:f5:nginx_plus:r36:p4:*:*:*:*:*:* | ||
| cpe:2.3:a:f5:nginx_plus:r36:p5:*:*:*:*:*:* |
Para consultar la lista completa de nombres de CPE con productos y versiones, ver esta página



