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 products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Eclipse Foundation | Eclipse OpenJ9 | 0.21 – < 0.59 | 0.59 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | eclipse | No fix yet | — |
| Ubuntu 16.04 LTS | eclipse | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | java-21-ibm-semeru-certified-jdk +4 | 1:21.0.11.0.10-2.el10_1 | RHSA-2026:22328 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10.2 EUS | java-21-ibm-semeru-certified-jdk +4 | 1:21.0.11.0.10-2.el10_1 | RHSA-2026:22328 |
| RHEL 10.0 EUS | java-21-ibm-semeru-certified-jdk +1 | 1:21.0.11.0.10-1.el10_0 | RHSA-2026:22328 |
Advisories 2
- RHSA-2026:22328 Red Hat Security Advisory: java-21-ibm-semeru-certified-jdk security update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- WID-SEC-2026-1687 IBM License Metric Tool: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff BSI CERT-Bund (WID) · Sep 1, 2026