Eclipse OpenJ9 : Using -Xtrace to trace method arguments can lead to buffer underflow

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-16439
StatePUBLISHED
Assignereclipse
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-21 18:16:56 UTC
Updated2026-07-22 20:37:38 UTC
DescriptionIn Eclipse OpenJ9 versions up to 0.60, using -Xtrace to trace method arguments can lead to buffer underflow.

Risk And Classification

Primary CVSS: v4.0 5.8 MEDIUM from [email protected]

CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:N/VI:H/VA:H/SC:N/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS: 0.002040000 probability, percentile 0.105920000 (date 2026-07-22)

Problem Types: CWE-124 | CWE-124 CWE-124 Buffer underwrite ('buffer underflow')

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary5.8MEDIUMCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:N/VI:H/VA:H/SC:N/SI:L/SA:L/E:X/C...
4.0CNACVSS5.8MEDIUMCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:N/VI:H/VA:H/SC:N/SI:L/SA:L

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
High
Attack Requirements
Present
Privileges Required
Low
User Interaction
Active
Confidentiality
None
Integrity
High
Availability
High
Sub Conf.
None
Sub Integrity
Low
Sub Availability
Low

CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:N/VI:H/VA:H/SC:N/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Eclipse Foundation OpenJ9 affected 0.8.0 0.60.0 custom Not specified
CNA Eclipse Foundation OpenJ9 unaffected 0.8.0 custom Not specified
CNA Eclipse Foundation OpenJ9 unaffected 0.60.0 custom Not specified

References

ReferenceSourceLinkTags
gitlab.eclipse.org/security/cve-assignment/-/work_items/192 [email protected] gitlab.eclipse.org
github.com/eclipse-openj9/openj9/pull/24394 [email protected] github.com
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