CVE-2026-6918 HIGH

CVE-2026-6918

Vendor Eclipse Foundation
Product Eclipse OpenJ9
Weakness CWE-125
Published May 5, 2026
Last update June 30, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

In Eclipse Open9J versions 0.21 to 0.58, a pre-authentication remote attacker can crash JITServer by sending a 32-byte crafted TCP message.

Key dates

02Disclosure timeline

May 5, 2026 CVE published
June 30, 2026 Record updated