CVE catalog
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.
- Severity
- High · CVSS 8.7
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/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 - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.52% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | openj9 | Not reported | 0.59.0 | fixed |
| Ubuntu | eclipse | 16.04 | 3.8.1-8 | vulnerable |
| Ubuntu | eclipse | 18.04 | 3.8.1-10 | vulnerable |
| Ubuntu | eclipse | 18.04 | 3.8.1-11 | vulnerable |
| Cpe | openj9 | Not reported | 0.59.0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | openj9 | cpe | Not reported | 0.59.0 | Not reported | Not reported | Not reported |
| Cpe | openj9 | cpe | Not reported | 0.59.0 | Not reported | NVD-CVE-2026-6918 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [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/pull/23793]
- [https://github.com/eclipse-openj9/openj9/security/advisories/GHSA-q393-vr4c-969r]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-6918]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-6918]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6918.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1687.json]
[CERT-Bund public advisories] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]