title: Elasticsearch StackOverflow vulnerability
description: A flaw was discovered in Elasticsearch, affecting the _search API that allowed a specially crafted query string to cause a Stack Overflow and ultimately a Denial of Service.
problem types: CWE-121: Stack-based Buffer Overflow
affected:
{
defaultStatus: unaffected
product: Elasticsearch
vendor: Elastic
versions:
lessThan: 7.17.12, status: affected, version: 7.0.0, versionType: semver
lessThan: 8.9.0, status: affected, version: 8.0.0, versionType: semver
}
metrics:
cvssV3_1: [
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
]
format: CVSS
scenarios: GENERAL