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CVE-2026-111074high8.7

JITServer: Pre-authentication remote Denial of Service via integer overflow infinite loop in MessageBuffer::computeRequiredCapacity()

Impact

Eclipse OpenJ9 versions prior to 0.63.0 are vulnerable to a pre-authentication remote denial of service via an integer overflow in MessageBuffer::computeRequiredCapacity(). An unauthenticated remote attacker can cause the compilation worker thread to enter an infinite loop. This can exhaust the worker thread pool, halting compilation services.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Affected packages

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Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

Eclipse Foundation · eclipse

Eclipse OpenJ9

1 range
eclipse version evidence

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affected

0.8.0 → before 0.63

semver versions

unaffected

unknown

Other versions: unaffected

Original source description

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.

Inside the record

Evidence available

Package identity · not supplied
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-111074

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-190 ↗

CWE-190

eclipse

Related →
CWE-835 ↗

CWE-835

eclipse

Related →
Contributing organizations · 2
eclipse

Assigning organization

2026-10-21
CISA-ADP

Additional data publisher

2026-10-26

What changed

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References

3 sources
github.com/eclipse-openj9/openj9/pull/25008
Patcheclipse
gitlab.eclipse.org/security/vulnerability-reports/-/work_items/940
Security advisoryeclipse
gitlab.eclipse.org/security/cve-assignment/-/work_items/422
Security advisoryeclipse