CVE-2026-111074: high-severity vulnerability in Eclipse OpenJ9
JITServer: Pre-authentication remote Denial of Service via integer overflow infinite loop in MessageBuffer::computeRequiredCapacity()
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 0.4%
In Eclipse OpenJ9 versions prior to 0.63.0, the JITServer component is vulnerable to a pre-authentication remote denial of service. When processing the initial 4-byte length field of an incoming TCP connection, an integer overflow in `MessageBuffer::computeRequiredCapacity()` causes the receiving compilation worker thread to enter an infinite loop consuming ~100% CPU. An unauthenticated remote attacker can exploit this by opening a small number of crafted TCP connections to exhaust the entire worker thread pool, silently halting compilation services for all connected client JVMs.
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
Affected products
Eclipse Foundation · Eclipse OpenJ9Related CVEs — Eclipse OpenJ9
In the same product, most dangerous first.
CVE-2026-6918HIGHCVE-2026-6918EPSS 0.5%CVE-2023-2597HIGHCVE-2023-2597EPSS 0.4%CVE-2026-110938HIGHJITServer: Multiple Denial of Service vulnerabilities via out-of-bounds heap reads during message and reply parsingEPSS 0.4%CVE-2026-111075HIGHJITServer: Pre-authentication remote crash via integer underflow and out-of-bounds heap read in DataDescriptor deserializationEPSS 0.4%CVE-2026-16440MEDIUMCVE-2026-16440EPSS 0.3%CVE-2026-97400MEDIUMjdmpview / DTFJ reads arbitrary local files and makes arbitrary outbound requests when opening a third-party diagnostic dump bundle (XXE in XMLIndexReader)EPSS 0.2%