CVE-2026-90921 Maximo AI Service Denial of Service

High 7.5 Published Updated

Remote attackers can cause a denial of service in IBM Maximo AI Service by sending malformed frames, terminating the host process.

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-2026-90921?

CVE-2026-90921 is a high-severity denial of service vulnerability in IBM Maximo AI Service, published on 12 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

IBM Maximo AI Service 9.1.0, and 9.2.0 could allow a remote attacker to cause a denial of service due to improper handling of malformed frames, resulting in termination of the host process.

Weakness: CWE-130

Which versions are affected by CVE-2026-90921?

How do I fix CVE-2026-90921?

No fix has been published for CVE-2026-90921 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-2026-90921 being exploited?

There is no known exploitation of CVE-2026-90921 in the wild and no public exploit code.

Sources

Also known as GHSA-97m5-vw58-m6hv.

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