CVE-2026-16441 — CRITICAL (9.6)

Q: How severe is CVE-2026-16441?

CVE-2026-16441 has been rated CRITICAL with a CVSS base score of 9.6/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2026-16441?

Check the references section above for vendor advisories and patch information. Affected products include: Eclipse Openj9.

Vulnerability Description

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.

CVSS Score

9.6

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Eclipse	Openj9	>= 0.8.0, < 0.60.0

Related Weaknesses (CWE)

CWE-758

References

https://github.com/eclipse-openj9/openj9/pull/24396Issue TrackingPatch
https://github.com/eclipse-openj9/openj9/security/advisories/GHSA-hcfc-9hjx-2q7fBroken Link
https://gitlab.eclipse.org/security/cve-assignment/-/work_items/194Broken Link

FAQ

What is CVE-2026-16441?

CVE-2026-16441 is a vulnerability with a CVSS score of 9.6 (CRITICAL). 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 defa...

How severe is CVE-2026-16441?

CVE-2026-16441 has been rated CRITICAL with a CVSS base score of 9.6/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-16441?

Check the references section above for vendor advisories and patch information. Affected products include: Eclipse Openj9.