CVE-2026-84276 IBM Guardium Data Protection Denial of Service

High 7.5 Published Updated

An unauthenticated remote attacker can crash the edge-controller process by sending malformed task data to the gRPC service.

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-2026-84276?

CVE-2026-84276 is a high-severity denial of service vulnerability in Ibm Guardium Data Protection, published on 8 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

IBM Guardium Data Protection 12.2.2 is affected by a denial-of-service vulnerability in the edge-controller. An unauthenticated remote attacker with network access to the edge-controller gRPC service can provide malformed task data that triggers an unchecked type assertion, causing the edge-controller process to terminate unexpectedly.

Weakness: CWE-400

Which versions are affected by CVE-2026-84276?

It affects 1 product.

Products include Ibm Guardium Data Protection.

How do I fix CVE-2026-84276?

No fix has been published for CVE-2026-84276 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-2026-84276 being exploited?

There is no known exploitation of CVE-2026-84276 in the wild and no public exploit code.

All Ibm Guardium Data Protection vulnerabilities

Sources

Also known as GHSA-g3c4-g93w-p4xg.

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