CVE-2026-18076 IBM i is Affected By Multiple Vulnerabilities in Debug Server

Medium 4.3 Published Updated

A remote authenticated attacker can cause a denial of service via a memory leak in the IBM i Debug Server.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-18076?

CVE-2026-18076 is a medium-severity denial of service vulnerability in Ibm I, published on 4 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to cause a denial of service due to a memory leak.

Weakness: CWE-401

Which versions are affected by CVE-2026-18076?

It affects 1 product.

Products include Ibm I.

How do I fix CVE-2026-18076?

No fix has been published for CVE-2026-18076 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-2026-18076 being exploited?

There is no known exploitation of CVE-2026-18076 in the wild and no public exploit code.

All Ibm I vulnerabilities

Sources

Also known as GHSA-pc96-pg3p-mmm7.

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