CVE Explorer
CVE-2026-56148
Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user can submit a specially crafted query that causes excessive resource consumption while the request is processed, which may render the affected node unavailable.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"Elasticsearch","vendor":"Elastic","versions":[{"lessThanOrEqual":"9.4.2","status":"affected","version":"9.4.0","versionType":"semver"},{"lessThanOrEqual":"9.3.5","status":"affected","version":"9.0.0","versionType":"semver"},{"lessThanOrEqual":"8.19.16","status":"affected","version":"8.0.0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:e666c94c0f381fd489d3eab6212911edcfb75b34f7d0d547a6ef9f41e2fde8c6 · sha256:8b66f082ad241934… · /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_v5cvssurn:baitaphish:normalized-source-record:v2:e666c94c0f381fd489d3eab6212911edcfb75b34f7d0d547a6ef9f41e2fde8c6 · sha256:8b66f082ad241934… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-674","description":"CWE-674 Uncontrolled Recursion","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:e666c94c0f381fd489d3eab6212911edcfb75b34f7d0d547a6ef9f41e2fde8c6 · sha256:8b66f082ad241934… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"url":"https://discuss.elastic.co/t/elasticsearch-8-19-17-9-3-6-9-4-3-security-update-esa-2026-42"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:e666c94c0f381fd489d3eab6212911edcfb75b34f7d0d547a6ef9f41e2fde8c6 · sha256:8b66f082ad241934… · /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.