IBM WebSphere 8.5/9.0 Auth Bypass via CSIv2 Inbound Propagation
CVE-2026-93907 Published on October 13, 2026

IBM WebSphere Application Server is affected by a bypass authentication vulnerability
IBM WebSphere Application Server 8.5, and 9.0 could allow a remote attacker to bypass authentication by exploiting a flaw in the CSIv2 inbound propagation handler.

Vendor Advisory NVD

Vulnerability Analysis

CVE-2026-93907 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
NETWORK
Attack Complexity:
HIGH
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Weakness Type

What is an authentification Vulnerability?

When an actor claims to have a given identity, the software does not prove or insufficiently proves that the claim is correct.

CVE-2026-93907 has been classified to as an authentification vulnerability or weakness.


Products Associated with CVE-2026-93907

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IBM WebSphere Application Server
 

Affected Versions

IBM WebSphere Application Server: