CVE-2026-6918

Description

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 Platforms

Weakness Type

CWE-125, CWE-1286

References

• https://github.com/eclipse-openj9/openj9/pull/23793
• https://github.com/eclipse-openj9/openj9/security/advisories/GHSA-q393-vr4c-969r
• 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