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CVE-2026-33464

Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user holding a low-privileged role can submit a specially crafted, oversized payload to an internal Kibana API, causing the Kibana process to exhaust available resources and become unresponsive to all users until the service recovers or is restarted.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:917aa2f89ed3614f13e4b1f6319bbd756731e76e69ab9d174ebb24f4e5575f8f
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"Kibana","vendor":"Elastic","versions":[{"lessThanOrEqual":"9.4.0","status":"affected","version":"9.4.0","versionType":"semver"},{"lessThanOrEqual":"9.3.4","status":"affected","version":"9.0.0","versionType":"semver"},{"lessThanOrEqual":"8.19.15","status":"affected","version":"8.0.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c4cbcf9c84dca2a137f0303434e5ded588a2584b8f25ce31c2041e113622781c · sha256:2b837585c1b20177… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/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:c4cbcf9c84dca2a137f0303434e5ded588a2584b8f25ce31c2041e113622781c · sha256:2b837585c1b20177… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-400","description":"CWE-400 Uncontrolled Resource Consumption","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c4cbcf9c84dca2a137f0303434e5ded588a2584b8f25ce31c2041e113622781c · sha256:2b837585c1b20177… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"url":"https://discuss.elastic.co/t/kibana-8-19-16-9-3-5-9-4-1-security-update-esa-2026-32/386548"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c4cbcf9c84dca2a137f0303434e5ded588a2584b8f25ce31c2041e113622781c · sha256:2b837585c1b20177… · /containers/cna/references/0

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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