CVE-2026-16111 IBM DataPower Gateway Type Confusion

What is CVE-2026-16111?

CVE-2026-16111 is a high-severity memory corruption vulnerability in Ibm Datapower Gateway, 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 DataPower Gateway 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6, 10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2 could allow an attacker to cause a denial of service due to a type confusion flaw.

Weakness: CWE-843

Which versions are affected by CVE-2026-16111?

It affects 1 product.

Products include Ibm Datapower Gateway.

How do I fix CVE-2026-16111?

No fix has been published for CVE-2026-16111 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-16111 being exploited?

There is no known exploitation of CVE-2026-16111 in the wild and no public exploit code.

Other vulnerabilities in Ibm Datapower Gateway

• CVE-2026-14269 IBM DataPower Gateway Buffer Overflow Critical 9.8
• CVE-2026-14502 IBM DataPower Gateway Improper Authentication Critical 9.8
• CVE-2026-14991 IBM DataPower Gateway Out-of-bounds Write Critical 9.8
• CVE-2026-14992 IBM DataPower Gateway Out-of-bounds Write Critical 9.8
• CVE-2026-15762 IBM DataPower Gateway Out-of-bounds Write Critical 9.8

All Ibm Datapower Gateway vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-27r3-8555-4mqr.