PT-2026-37037 · Eclipse · Open9J

Sebasteuo · Published 2026-05-05 · Updated 2026-05-05 · CVE-2026-6918

Positive Technologies (AI Summary)

CVSS v4.0

8.7

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions Eclipse Open9J versions 0.21 through 0.58

Description A pre-authentication remote attacker can cause the JITServer to crash by sending a specifically crafted 32-byte TCP message.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-6918

Affected Products

Open9J

References · 7

• 🔥 https://github.com/eclipse-openj9/openj9/security/advisories/GHSA-q393-vr4c-969r · Exploit
• https://github.com/eclipse-openj9/openj9/pull/23793 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-6918 · Security Note
• https://ubuntu.com/security/CVE-2026-6918 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-6918 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-6918 · Vendor Advisory
• https://t.me/CVEtracker/52752 · Telegram Post