IBM i 7.x Thread Authority Swap Local Priv Esc
CVE-2026-18101 Published on August 13, 2026

IBM i is Affected By Multiple Vulnerabilities in WebSphere Application Server Liberty
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local attacker to gain elevated privileges due to improper management of thread authority swaps.

Vendor Advisory NVD

Vulnerability Analysis

CVE-2026-18101 can be exploited with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
LOCAL
Attack Complexity:
LOW
Privileges Required:
LOW
User Interaction:
NONE
Scope:
CHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Weakness Type

Improper Privilege Management

The software does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.


Products Associated with CVE-2026-18101

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IBM I
 

Affected Versions

IBM i: