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).
Published: 2026-10-21
Score: 8.7 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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History

Wed, 21 Oct 2026 08:30:00 +0000

Type Values Removed Values Added
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).
Title JITServer: Multiple Denial of Service vulnerabilities via out-of-bounds heap reads during message and reply parsing
Weaknesses CWE-125
CWE-20
References
Metrics cvssV4_0

{'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'}

Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: eclipse

Published:

Updated: 2026-10-21T08:03:26.062Z

Reserved: 2026-10-15T07:11:06.825Z

Link: CVE-2026-110938

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-21T09:17:06.717

Modified: 2026-10-21T09:17:06.717

Link: CVE-2026-110938

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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Weaknesses