IBM WAS Liberty 17.0.0.3 DoS via Crafty Request (Memory Exhaustion)
CVE-2026-11897 Published on July 30, 2026
IBM WebSphere Application Server Liberty is affected by a denial of service vulnerability with HTTP/2
IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.7 is vulnerable to a denial of service, caused by sending a specially crafted request. A remote attacker could exploit this vulnerability to cause the server to consume memory resources.
Vulnerability Analysis
CVE-2026-11897 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity and availability.
Weakness Type
Allocation of Resources Without Limits or Throttling
The software allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.
Products Associated with CVE-2026-11897
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Affected Versions
IBM WebSphere Application Server - Liberty:- Version 17.0.0.3, <= 26.0.0.7 is affected.