CVE-2026-38999 Null dereference in n/a

High 7.5 Published Updated

Attackers can cause a Denial of Service in the Monkey web server by sending a crafted HTTP request that triggers a null pointer dereference.

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-2026-38999?

CVE-2026-38999 is a high-severity vulnerability in n/a, published on 16 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A Null Pointer Dereference in the mk_sched_event_close function (mk_server/mk_scheduler.c) of Monkey through commit 4fb0c16 allows attackers to cause a Denial of Service (DoS) via sending a crafted HTTP request to the server.

Weakness: CWE-476

Which versions are affected by CVE-2026-38999?

How do I fix CVE-2026-38999?

No fix has been published for CVE-2026-38999 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-38999 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-38999 exists.

Sources

Also known as GHSA-qq3g-fr8f-mchg.

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