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CVE-2026-110938

JITServer: Multiple Denial of Service vulnerabilities via out-of-bounds heap reads during message and reply parsing

CVSS score

8.7

EPSS probability

—

Risk score

0.9

Published

3 h ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Patch status has not yet been verified

Resmî kaynaklarda yeterli kanıt bulunamadı. Bu sonuç “yama yok” anlamına gelmez.

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Vulnerability description

DayBreach AI Explanation

Verified against sources

Denial of Service Vulnerability in Eclipse OpenJ9 JITServer Component

Sources read

1

Source agreement

Tam uyum

Evidence confidence

%55

Short explanation

The JITServer component in Eclipse OpenJ9 versions is vulnerable to denial of service due to improper boundary checks during protocol message processing. S0, S1

Why does it matter?

Unauthenticated remote attackers can send crafted network payloads to crash the JITServer daemon or client JVM processes. S0, S1

What should be done?

  • Monitor vendor advisories
  • Apply relevant updates
  • Review network segmentation
Chain of evidence and sources2 verified claims

Eclipse OpenJ9 sürümlerinde JITServer bileşeni, mesaj ayrıştırma sırasındaki sınır denetimi eksiklikleri nedeniyle hizmet engelleme zafiyetine tabidir. S0, S1

S0 · daybreach-canonicalS1 · cvelist

Saldırganlar, ağ üzerinden ilettikleri yüklerle bellek okuma hatalarına yol açarak JITServer daemon sürecini çökletebilir. S0, S1

S0 · daybreach-canonicalS1 · cvelist
Show the technical text from the sources

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).

CVSS 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

CWE: CWE-125, CWE-20

This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-110938 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1Eclipse FoundationEclipse OpenJ9 View
Total affected vendors: 1|Products: 1

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
8.7CVSS V40HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XNVD
8.7CVSS V4_0HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NCVE CNA

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-110938 is associated with the following CWEs:

CWE-125: Out-of-bounds ReadCWE-20: Improper Input Validation

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-110938 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden
PermissionsGerekmiyor
UserGerekmiyor

Official Sources and Advisories

https://github.com/eclipse-openj9/openj9/pull/25011vendor-advisoryhttps://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/943vendor-advisoryhttps://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/944vendor-advisoryhttps://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/946vendor-advisoryhttps://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/947vendor-advisoryhttps://gitlab.eclipse.org/security/cve-assignment/-/work_items/407vendor-advisory

CVSS Vector Radar Chart

8.7 / 10
Attack VectorNetworkComplexityLowPrivilegesNoneUser Interact.NoneConfidentialityLowIntegrityNoneAvailabilityHigh

Vulnerability Scoring Details

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
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone required
User InteractionNone required
Confidentiality (Gizlilik)Low
Integrity (Bütünlük)None
Availability (Erişilebilirlik)High

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Follow the vendor

EF
Eclipse Foundation logo
Eclipse Foundation

Weakness Type (CWE & CAPEC)

CWE-125 CWE-20

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CVE-2026-110938 · JITServer: Multiple Denial of Service…