CVE-2026-16184 IBM WebSphere Application Server is affected by an authentication bypass

What is CVE-2026-16184?

CVE-2026-16184 is a high-severity authentication bypass vulnerability in Ibm Websphere Application Server, published on 28 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

IBM WebSphere Application Server 9.0, and 8.5 could allow a remote attacker to bypass authentication by sending a crafted unauthenticated request.

Weakness: CWE-862

Which versions are affected by CVE-2026-16184?

It affects 1 product.

Products include Ibm Websphere Application Server.

How do I fix CVE-2026-16184?

No fix has been published for CVE-2026-16184 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-16184 being exploited?

There is no known exploitation of CVE-2026-16184 in the wild and no public exploit code.

Other vulnerabilities in Ibm Websphere Application Server

• CVE-2015-1920 Code injection in n/a Critical 10.0
• CVE-2013-0462 Other in n/a Critical 10.0
• CVE-2011-1377 Security feature bypass in n/a Critical 10.0
• CVE-2010-3186 Other in n/a Critical 10.0
• CVE-2009-1899 Information disclosure in n/a Critical 10.0

All Ibm Websphere Application Server vulnerabilities

Sources

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

Also known as GHSA-78h9-3p2w-5gmr.