CVE-2023-40593 json
Denial of Service (DoS) in Splunk Enterprise Using a Malformed SAML Request
published 2023-08-30 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-45151
- cvss
- 6.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 48%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Splunk Splunk Enterprise 8.2.12, 9.0.6
- Splunk Splunk Cloud 9.0.2205
Exploit prediction
0.58% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.3 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
- Splunk Splunk Enterprise
- Splunk Splunk Cloud
Classification
- Weakness
-
- CWE-400 Uncontrolled Resource Consumption
References
-
advisory.splunk.com
/advisories/SVD-2023-0802
vendor-advisory
-
research.splunk.com
/application/8e8a86d5-f323-4567-95be-8e817e2baee6/
vendor-advisory
Sources
- CVE List CVE-2023-40593
- NVD CVE-2023-40593
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