CVE-2023-32706: Denial Of Service due to Untrusted XML Tag in XML Parser within SAML Authentication

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-06-01 · updated 2026-06-17
Weakness: CWE-611

Description

On Splunk Enterprise versions below 9.0.5, 8.2.11, and 8.1.14, an unauthenticated attacker can send specially-crafted messages to the XML parser within SAML authentication to cause a denial of service in the Splunk daemon.

Affected products

Splunk Enterprise: from 8.1.0 before 8.1.14; from 8.2.0 before 8.2.11; from 9.0.0 before 9.0.5 — fixed in 8.1.14, 8.2.11, 9.0.5
Splunk Cloud Platform: before 9.0.2303.100 — fixed in 9.0.2303.100

How to fix

Upgrade to a fixed version: Splunk Enterprise 8.1.14, 8.2.11, 9.0.5; Splunk Cloud Platform 9.0.2303.100. Check the vendor advisory for mitigations.

References

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