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Vulnerability record · CVE-2023-40593 · published 30 August 2023

CVE-2023-40593: Splunk uncontrolled resource consumption vulnerability

Splunk · Splunk

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.

7.5 CVSS 3.1 High EPSS 0.58% · top 54.3% CWE-400 · Uncontrolled resource consumption
7.5CVSS 3.1 base score
0.58%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://advisory.splunk.com/advisories/SVD-2023-0802 Vendor Advisory
https://research.splunk.com/application/8e8a86d5-f323-4567-95be-8e817e2baee6/ Vendor Advisory
https://advisory.splunk.com/advisories/SVD-2023-0802 Vendor Advisory
https://research.splunk.com/application/8e8a86d5-f323-4567-95be-8e817e2baee6/ Vendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-40593), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.