OpenJ9 <=0.60 Misdelegates Abstract Method to Interface Default
CVE-2026-16441 Published on July 21, 2026
Eclipse OpenJ9 : Method resolution default method precedence failure
In Eclipse OpenJ9 versions up to 0.60, when executing class files where a previously concrete superclass method has been recompiled as abstract, execution is incorrectly delegated to an interface default method.
Weakness Type
Reliance on Undefined, Unspecified, or Implementation-Defined Behavior
The software uses an API function, data structure, or other entity in a way that relies on properties that are not always guaranteed to hold for that entity. This can lead to resultant weaknesses when the required properties change, such as when the software is ported to a different platform or if an interaction error (CWE-435) occurs.
Products Associated with CVE-2026-16441
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Affected Versions
Eclipse Foundation OpenJ9:- Version 0.8.0 and below 0.60.0 is affected.
- Before 0.8.0 is unaffected.
- Version 0.60.0 is unaffected.