CVE-2026-11710 IBM WebSphere Application Server is affected by an HTTP request smuggling vulnerability
Attackers can exploit HTTP request smuggling in IBM WebSphere Application Server via improper Content-Length handling, potentially bypassing security controls or accessing sensitive data.
- 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-2026-11710?
CVE-2026-11710 is a medium-severity vulnerability in IBM WebSphere Application Server, published on 18 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 8.5 is affected by an HTTP request smuggling vulnerability due to improper handling of Content-Length headers.
Weakness: CWE-444
Which versions are affected by CVE-2026-11710?
How do I fix CVE-2026-11710?
No fix has been published for CVE-2026-11710 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-11710 being exploited?
There is no known exploitation of CVE-2026-11710 in the wild and no public exploit code.
Sources
Also known as GHSA-4vjg-vw7f-qrj3.