CVE-2026-12733 IBM DataPower Gateway affected by denial of service

What is CVE-2026-12733?

CVE-2026-12733 is a high-severity denial of service vulnerability in Ibm Datapower Gateway, published on 30 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

IBM DataPower Gateway could allow a remote attacker to cause a denial of service due to improper resource limitations.

Weakness: CWE-770

Which versions are affected by CVE-2026-12733?

It affects 1 product.

Products include Ibm Datapower Gateway.

How do I fix CVE-2026-12733?

No fix has been published for CVE-2026-12733 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-2026-12733 being exploited?

There is no known exploitation of CVE-2026-12733 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-wg6c-2573-m6q2.