title: Denial of Service (DoS) in Splunk Enterprise Using a Malformed SAML Request
description: In Splunk Enterprise versions lower than 9.0.6 and 8.2.12, a malicious actor can send a malformed security assertion markup language (SAML) request to the `/saml/acs` REST endpoint which can cause a denial of service through a crash or hang of the Splunk daemon.
problem types: The software does not properly control the allocation and maintenance of a limited resource thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.
affected:
{
product: Splunk Enterprise
vendor: Splunk
versions:
version: 8.2, status: affected, versionType: custom, lessThan: 8.2.12
version: 9.0, status: affected, versionType: custom, lessThan: 9.0.6
}
{
product: Splunk Cloud
vendor: Splunk
versions:
version: -, status: affected, versionType: custom, lessThan: 9.0.2205
}
metrics:
cvssV3_1: [
vectorString: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
version: 3.1
baseScore: 6.3
baseSeverity: MEDIUM
]
format: CVSS
scenarios: GENERAL