CVE-2026-6918: 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.

PriorityP349high7.5CVSS 3.1

AVNACLPRNUINSUCNINAH

EPSS

0.52%

40.5th percentile

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.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
eclipse	openj9	>= 0.21.0 < 0.59.0	0.59.0
eclipse_foundation	eclipse_openj9	>= 0.21 < 0.59	0.59

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvdv4.08.7HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/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_redhat8.7HIGH

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