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CVE-2026-6918

A flaw was found in Eclipse Open9J and JITServer. A remote attacker, without needing to authenticate, can send a specially crafted 32-byte TCP message to JITServer. This action can cause JITServer to crash, leading to a Denial of Service (DoS) for affected systems.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:afe901892e245709b634765c17e8b464f7e76b4927b49508fd897296909d81ac
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
3

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 4 assertions

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10.2"],"defaultStatus":"affected","packageName":"java-21-ibm-semeru-certified-jdk","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1:21.0.11.0.10-2.el10_1","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ada490f6a4e28e9504db9a45b068937082491be3ac8c9bcaca8cf5b275308b7b · sha256:2740bf8c3936f9a2… · /containers/adp/1/affected/0

{"defaultStatus":"unaffected","product":"Eclipse OpenJ9","vendor":"Eclipse Foundation","versions":[{"lessThan":"0.59","status":"affected","version":"0.21","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ada490f6a4e28e9504db9a45b068937082491be3ac8c9bcaca8cf5b275308b7b · sha256:2740bf8c3936f9a2… · /containers/cna/affected/0

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux_eus:10.2"],"defaultStatus":"affected","packageName":"java-21-ibm-semeru-certified-jdk","product":"Red Hat Enterprise Linux 10.2 Extended Update Support","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1:21.0.11.0.10-2.el10_1","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ada490f6a4e28e9504db9a45b068937082491be3ac8c9bcaca8cf5b275308b7b · sha256:2740bf8c3936f9a2… · /containers/adp/1/affected/2

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux_eus:10.0"],"defaultStatus":"affected","packageName":"java-21-ibm-semeru-certified-jdk","product":"Red Hat Enterprise Linux 10.0 Extended Update Support","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1:21.0.11.0.10-1.el10_0","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ada490f6a4e28e9504db9a45b068937082491be3ac8c9bcaca8cf5b275308b7b · sha256:2740bf8c3936f9a2… · /containers/adp/1/affected/1
cvss · 2 assertions

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:ada490f6a4e28e9504db9a45b068937082491be3ac8c9bcaca8cf5b275308b7b · sha256:2740bf8c3936f9a2… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:ada490f6a4e28e9504db9a45b068937082491be3ac8c9bcaca8cf5b275308b7b · sha256:2740bf8c3936f9a2… · /containers/adp/1/metrics/1/cvssV3_1
cwe · 2 assertions

{"cweId":"CWE-1286","description":"Improper Validation of Syntactic Correctness of Input","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:ada490f6a4e28e9504db9a45b068937082491be3ac8c9bcaca8cf5b275308b7b · sha256:2740bf8c3936f9a2… · /containers/adp/1/problemTypes/0/descriptions/0

{"cweId":"CWE-125","description":"CWE-125 Out-of-bounds read","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:ada490f6a4e28e9504db9a45b068937082491be3ac8c9bcaca8cf5b275308b7b · sha256:2740bf8c3936f9a2… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

4 source assertions
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10.2"],"defaultStatus":"affected","packageName":"java-21-ibm-semeru-certified-jdk","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1:21.0.11.0.10-2.el10_1","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ada490f6a4e28e9504db9a45b068937082491be3ac8c9bcaca8cf5b275308b7b · sha256:2740bf8c3936f9a2… · /containers/adp/1/affected/0
{"defaultStatus":"unaffected","product":"Eclipse OpenJ9","vendor":"Eclipse Foundation","versions":[{"lessThan":"0.59","status":"affected","version":"0.21","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ada490f6a4e28e9504db9a45b068937082491be3ac8c9bcaca8cf5b275308b7b · sha256:2740bf8c3936f9a2… · /containers/cna/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux_eus:10.2"],"defaultStatus":"affected","packageName":"java-21-ibm-semeru-certified-jdk","product":"Red Hat Enterprise Linux 10.2 Extended Update Support","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1:21.0.11.0.10-2.el10_1","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ada490f6a4e28e9504db9a45b068937082491be3ac8c9bcaca8cf5b275308b7b · sha256:2740bf8c3936f9a2… · /containers/adp/1/affected/2
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux_eus:10.0"],"defaultStatus":"affected","packageName":"java-21-ibm-semeru-certified-jdk","product":"Red Hat Enterprise Linux 10.0 Extended Update Support","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1:21.0.11.0.10-1.el10_0","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ada490f6a4e28e9504db9a45b068937082491be3ac8c9bcaca8cf5b275308b7b · sha256:2740bf8c3936f9a2… · /containers/adp/1/affected/1

Provider-owned CVSS observations

2 source assertions
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:ada490f6a4e28e9504db9a45b068937082491be3ac8c9bcaca8cf5b275308b7b · sha256:2740bf8c3936f9a2… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:ada490f6a4e28e9504db9a45b068937082491be3ac8c9bcaca8cf5b275308b7b · sha256:2740bf8c3936f9a2… · /containers/adp/1/metrics/1/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-1286","description":"Improper Validation of Syntactic Correctness of Input","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:ada490f6a4e28e9504db9a45b068937082491be3ac8c9bcaca8cf5b275308b7b · sha256:2740bf8c3936f9a2… · /containers/adp/1/problemTypes/0/descriptions/0
{"cweId":"CWE-125","description":"CWE-125 Out-of-bounds read","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:ada490f6a4e28e9504db9a45b068937082491be3ac8c9bcaca8cf5b275308b7b · sha256:2740bf8c3936f9a2… · /containers/cna/problemTypes/0/descriptions/0

Source references

7 source assertions
{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:22328"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ada490f6a4e28e9504db9a45b068937082491be3ac8c9bcaca8cf5b275308b7b · sha256:2740bf8c3936f9a2… · /containers/adp/1/references/3
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-6918"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ada490f6a4e28e9504db9a45b068937082491be3ac8c9bcaca8cf5b275308b7b · sha256:2740bf8c3936f9a2… · /containers/adp/1/references/0
{"name":"RHBZ#2466741","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2466741"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ada490f6a4e28e9504db9a45b068937082491be3ac8c9bcaca8cf5b275308b7b · sha256:2740bf8c3936f9a2… · /containers/adp/1/references/1
{"url":"https://github.com/eclipse-openj9/openj9/pull/23793"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ada490f6a4e28e9504db9a45b068937082491be3ac8c9bcaca8cf5b275308b7b · sha256:2740bf8c3936f9a2… · /containers/cna/references/1
{"url":"https://github.com/eclipse-openj9/openj9/security/advisories/GHSA-q393-vr4c-969r"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ada490f6a4e28e9504db9a45b068937082491be3ac8c9bcaca8cf5b275308b7b · sha256:2740bf8c3936f9a2… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/eclipse-openj9/openj9/security/advisories/GHSA-q393-vr4c-969r"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ada490f6a4e28e9504db9a45b068937082491be3ac8c9bcaca8cf5b275308b7b · sha256:2740bf8c3936f9a2… · /containers/adp/0/references/0
{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6918.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ada490f6a4e28e9504db9a45b068937082491be3ac8c9bcaca8cf5b275308b7b · sha256:2740bf8c3936f9a2… · /containers/adp/1/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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