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.
CVE-2026-16441
MEDIUMPre-NVD 6.96.9Trending — 3 sources updated this week
EchelonGraph scoreLOW confidence
This medium-severity CVE scores 6.9 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: secondary
6.9
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.9Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.9
- EG Score
- 6.9(low)
- EPSS
- 20.7%
- KEV
- Not listed
Published
July 21, 2026
Last Modified
July 22, 2026
Advisory Details (2)
Auto-updated Jul 21, 2026Upstream fix merged — awaiting tagged release. Sources: github_pr.
generic
Eclipse Projects Security / cve-assignment · GitLab
https://gitlab.eclipse.org/security/cve-assignment/-/work_items/194github_pr
(0.60) Fix invokeinterface IllegalAccessError handling
Fix merged in eclipse-openj9/openj9 PR #24396 on 2026-07-21 — awaiting tagged release
https://github.com/eclipse-openj9/openj9/pull/24396Vendor Advisories for CVE-2026-16441(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 4× in last 7d / 4× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 14:08 UTCEPSS rescore
- 2026-07-21 19:33 UTCEG score recompute
- 2026-07-21 18:45 UTCEG score recompute
- 2026-07-21 18:43 UTCMITRE cvelistV5first tracked
Frequently asked(5)
What is CVE-2026-16441?
CVE-2026-16441 is a medium vulnerability published on July 21, 2026. 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.
When was CVE-2026-16441 disclosed?
CVE-2026-16441 was first published in the National Vulnerability Database on July 21, 2026, with the most recent update on July 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-16441 actively exploited?
CVE-2026-16441 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 20.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-16441?
CVE-2026-16441 has a CVSS v4.0 base score of 6.9 (CNA self-assessment; NVD's own analysis pending). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-16441?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16441, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-16441
Is Your Infrastructure Affected by CVE-2026-16441?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.