IBM WebSphere App Server 9.0/8.5 pre-auth unsafe deserialization
CVE-2026-14512 Published on July 28, 2026
IBM WebSphere Application Server is affected by an unsafe deserialization and exposure of sensitive information
IBM WebSphere Application Server 9.0, and 8.5 traditional is vulnerable to pre-authentication unsafe deserialization which could allow a remote attacker to bypass authentication or execute arbitrary code.
Vulnerability Analysis
CVE-2026-14512 is exploitable 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 be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Weakness Type
What is a Marshaling, Unmarshaling Vulnerability?
The application deserializes untrusted data without sufficiently verifying that the resulting data will be valid.
CVE-2026-14512 has been classified to as a Marshaling, Unmarshaling vulnerability or weakness.
Products Associated with CVE-2026-14512
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Affected Versions
IBM WebSphere Application Server:- Version 9.0 is affected.
- Version 8.5 is affected.