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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/eclipse-openj9/openj9/pull/23793	Issue Tracking Patch
https://github.com/eclipse-openj9/openj9/security/advisories/GHSA-q393-vr4c-969r	Exploit Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:22328
https://access.redhat.com/security/cve/CVE-2026-6918
https://bugzilla.redhat.com/show_bug.cgi?id=2466741
https://github.com/eclipse-openj9/openj9/security/advisories/GHSA-q393-vr4c-969r	Exploit Vendor Advisory
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6918.json

Configurations

Configuration 1 (hide)

cpe:2.3:a:eclipse:openj9:*:*:*:*:*:*:*:*

History

26 Oct 2026, 19:10

Type	Values Removed	Values Added
Summary		(es) En las versiones 0.21 a 0.58 de Eclipse Open9J, un atacante remoto de pre-autenticación puede bloquear JITServer enviando un mensaje TCP manipulado de 32 bytes.

Information

Published : 2026-05-05 13:16

Updated : 2026-10-26 19:10

NVD link : CVE-2026-6918

Mitre link : CVE-2026-6918

CVE.ORG link : CVE-2026-6918

JSON object : View

Products Affected

eclipse

openj9

CWE

CWE-125

Out-of-bounds Read

CWE-1286

Improper Validation of Syntactic Correctness of Input

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