CVE-2026-36590 Denial of service in n/a
A remote attacker can cause a denial of service in EMQ NanoMQ via the nni_qos_db_set function.
- 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-2026-36590?
CVE-2026-36590 is a high-severity denial of service vulnerability in n/a, published on 15 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue in EMQ NanoMQ v.0.24.9 allows a remote attacker to cause a denial of service via the nni_qos_db_set function in broker_tcp.c component
Which versions are affected by CVE-2026-36590?
It affects 1 product.
Products include Emqx Nanomq.
How do I fix CVE-2026-36590?
No fix has been published for CVE-2026-36590 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-36590 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-36590 exists.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in n/a
Sources
Also known as GHSA-2gm5-wc63-c2pc.