Critical severity · published Jul 21, 2026
CVE-2026-16441
Eclipse OpenJ9 : Method resolution default method precedence failure
9.6
CVSS
0.5%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
OpenJ9 · Eclipse Foundation
0.8.0 before 0.60.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-16441
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-16441
Issue Tracking
https://github.com/eclipse-openj9/openj9/pull/24396
Broken Link
https://github.com/eclipse-openj9/openj9/security/advisories/GHSA-hcfc-9hjx-2q7f
Broken Link
https://gitlab.eclipse.org/security/cve-assignment/-/work_items/194
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9.1
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Eclipse OpenJ9 : Using -Xtrace to trace method arguments can lead to buffer underflow