CVE-2026-110938

high

Description

In Eclipse OpenJ9 versions up to 0.63.0, the JITServer component is vulnerable to denial of service due to improper boundary checks during protocol message and reply handling. An unauthenticated remote attacker or malicious JITServer can transmit malformed network payloads that cause out-of-bounds heap reads, immediately crashing the JITServer daemon or client JVM process via a segmentation fault (SIGSEGV).

References

https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/947

https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/946

https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/944

https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/943

https://gitlab.eclipse.org/security/cve-assignment/-/work_items/407

https://github.com/eclipse-openj9/openj9/pull/25011

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-107139

Details

Source: Mitre, NVD

Published: 2026-10-21

Updated: 2026-10-22

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

CVSS v4

Base Score: 8.7

Vector: 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

Severity: High

EPSS

EPSS: 0.00415