CVE-2026-16435 IBM WebSphere Application Server prior to 9.0.5.29 and 8.5.5.31 are affected by multiple vulnerabilities
Attackers can bypass authentication in IBM WebSphere Application Server when using XD or Intelligent-Management features, requiring a patch.
- 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-2026-16435?
CVE-2026-16435 is a medium-severity authentication bypass vulnerability in IBM WebSphere Application Server, published on 14 Sep 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 is affected by an authentication bypass vulnerability when using XD or Intelligent-Management features.
Weakness: CWE-650
Which versions are affected by CVE-2026-16435?
How do I fix CVE-2026-16435?
No fix has been published for CVE-2026-16435 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-2026-16435 being exploited?
There is no known exploitation of CVE-2026-16435 in the wild and no public exploit code.
Sources
Also known as GHSA-55wm-9r68-hmf9.