CVE-2026-3676 There are multiple vulnerabilities in IBM DB2 bundled with IBM Application Performance Management products.

Medium 6.5 Published Updated

An authenticated user can cause a denial of service in IBM Cloud APM by exploiting improper neutralization in the DB2 Fenced environment.

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-2026-3676?

CVE-2026-3676 is a medium-severity denial of service vulnerability in IBM Cloud APM, Advanced Private, published on 27 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

IBM Cloud APM, Base Private 8.1.4 and IBM Cloud APM, Advanced Private 8.1.4 IBM Db2 for Linux, UNIX and Windows (includes DB2 Connect Server) could allow an authenticated user to cause a denial of service due to improper neutralization of special elements in the data query logic of the Fenced environment.

Weakness: CWE-1284

Which versions are affected by CVE-2026-3676?

It affects 1 product.

Products include Ibm Cloud Application Performance Managemen.

How do I fix CVE-2026-3676?

No fix has been published for CVE-2026-3676 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-2026-3676 being exploited?

There is no known exploitation of CVE-2026-3676 in the wild and no public exploit code.

Sources

Also known as GHSA-p4qj-fgm6-87w7.

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