CVE Explorer

CVE-2026-63136

Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). A user with search privileges can submit a specially crafted search request that causes a data node to exhaust available heap memory, resulting in node unavailability and cluster degradation. An attacker could leverage this vulnerability to cause cluster downtime requiring manual intervention to restore service.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:3acafca7584acfac3023796229758e2f538bd7b255a1d1c6c9625e3155770985

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"defaultStatus":"unaffected","product":"Elasticsearch","vendor":"Elastic","versions":[{"lessThanOrEqual":"8.19.14","status":"affected","version":"8.0.0","versionType":"semver"},{"lessThanOrEqual":"9.3.3","status":"affected","version":"9.3.0","versionType":"semver"},{"lessThanOrEqual":"9.2.8","status":"affected","version":"9.0.0","versionType":"semver"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:d73093763579d7f12718faeb265aafa6c2e4b88923c01036db043a2e6703dafd · sha256:918847e5cd2662d5… · /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:d73093763579d7f12718faeb265aafa6c2e4b88923c01036db043a2e6703dafd · sha256:918847e5cd2662d5… · /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:d73093763579d7f12718faeb265aafa6c2e4b88923c01036db043a2e6703dafd · sha256:918847e5cd2662d5… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion

{"url":"https://discuss.elastic.co/t/elasticsearch-8-19-15-9-2-9-9-3-4-security-update-esa-2026-60/388559"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:d73093763579d7f12718faeb265aafa6c2e4b88923c01036db043a2e6703dafd · sha256:918847e5cd2662d5… · /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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