CVE-2026-110938: CWE-125 in Eclipse Foundation Eclipse OpenJ9
Description
Eclipse OpenJ9 versions from 0.8.0 up to but not including 0.63.0 contain a vulnerability in the JITServer component that allows unauthenticated remote attackers or malicious JITServers to cause denial of service. This occurs due to improper boundary checks during protocol message and reply handling, leading to out-of-bounds heap reads and immediate crashes of the JITServer daemon or client JVM process via segmentation faults.
CVSS v4.0
Score 8.7high
Affected software
Eclipse Foundation
Eclipse OpenJ9
pkg:github/eclipse-openj9/openj9Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-110938 is a high-severity vulnerability in Eclipse OpenJ9's JITServer component affecting versions >=0.8.0 and <0.63.0. The flaw arises from improper boundary checks during protocol message and reply handling, enabling unauthenticated remote attackers or malicious JITServers to send malformed network payloads that trigger out-of-bounds heap reads. This results in segmentation faults (SIGSEGV) that cause immediate denial of service by crashing the JITServer daemon or the client JVM process.
Potential Impact
Successful exploitation results in denial of service by crashing the JITServer daemon or client JVM process through segmentation faults caused by out-of-bounds heap reads. There is no indication of code execution or data corruption beyond the crash. The vulnerability requires no authentication and can be triggered remotely.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is available, restrict network access to the JITServer component to trusted sources to prevent unauthenticated remote exploitation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- eclipse
- Date Reserved
- 2026-10-15T07:11:06.825Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ad878f02cdf04f656d15cc9
Added to database: 10/21/2026, 08:33:52 UTC
Last enriched: 10/21/2026, 08:48:13 UTC
Last updated: 10/21/2026, 09:08:26 UTC
Views: 8
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