CVE-2026-60065 NGINX Plus ngx_stream_mqtt_filter_module vulnerability

Medium 6.3 Published 15 Jul 2026 Updated 15 Jul 2026

Unauthenticated attackers can cause a heap buffer over-read and restart the NGINX worker process when the MQTT filter module is enabled.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-60065?

CVE-2026-60065 is a medium-severity memory corruption vulnerability in F5 NGINX Plus, published on 15 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

When NGINX Plus is configured to use the Message Queuing Telemetry Transport (MQTT) filter module (ngx_stream_mqtt_filter_module), unauthenticated attackers can send requests with conditions beyond the attacker's control to cause a heap buffer over-read in the NGINX worker process, leading to a restart.

Impact: This vulnerability may allow remote unauthenticated attackers to have limited control to restart the NGINX worker process. There is no control plane exposure; this is a data plane issue only.

Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Weakness: CWE-125

Which versions are affected by CVE-2026-60065?

It affects 4 products.

Products include F5 Nginx Gateway Fabric, F5 Nginx Ingress Controller, F5 Nginx Plus, F5 Waf.

How do I fix CVE-2026-60065?

No fix has been published for CVE-2026-60065 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-60065 being exploited?

There is no known exploitation of CVE-2026-60065 in the wild and no public exploit code.

Sources

Also known as GHSA-w94h-5qpm-994v.