IBM WebSphere App Server Liberty 17-26 DOS via Uncontrolled Heap Allocation
CVE-2026-15057 Published on July 28, 2026
IBM WebSphere Application Server Liberty is affected by a denial of service vulnerability
IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.7 is vulnerable to a denial of service due to uncontrolled heap allocation.
Vulnerability Analysis
CVE-2026-15057 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 no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
What is a Memory Corruption Vulnerability?
The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent write operation then produces undefined or unexpected results.
CVE-2026-15057 has been classified to as a Memory Corruption vulnerability or weakness.
Products Associated with CVE-2026-15057
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Affected Versions
IBM WebSphere Application Server - Liberty:- Version 17.0.0.3, <= 26.0.0.7 is affected.