Medium 5.8Published Jul 21, 2026

CVE-2026-16439Eclipse OpenJ9 : Using -Xtrace to trace method arguments can lead to buffer underflow

Updated under an hour ago (Oct 27, 2026, 1:20 PM ET)

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It affects Eclipse Foundation OpenJ9 and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Eclipse Foundation OpenJ9

Exploited in the last 30 days

In Eclipse OpenJ9 versions up to 0.60, using -Xtrace to trace method arguments can lead to buffer underflow.

CVSS: 5.8 MEDIUM (v4.0, CNA)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
Weakness (CWE): CWE-124
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: eclipse
NVD analysis: Analyzed
Record last updated: Jul 22, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Eclipse Foundation OpenJ9 eclipse_foundation:openj9 (from the name)	from 0.8.0 before 0.60.0; before 0.8.0 not affected; 0.60.0 not affected	CNA record
eclipse openj9 eclipse:openj9	from 0.8.0 before 0.60.0	NVD

References

References

https://github.com/eclipse-openj9/openj9/pull/24394	issue-tracking, patch
https://gitlab.eclipse.org/security/cve-assignment/-/work_items/192	broken-link

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.