CVE-2024-45736: Improperly Formatted ‘INGEST_EVAL’ Parameter Crashes Splunk Daemon

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-10-14 · updated 2026-06-17
Weakness: CWE-400

Description

In Splunk Enterprise versions below 9.3.1, 9.2.3, and 9.1.6 and Splunk Cloud Platform versions below 9.2.2403.107, 9.1.2312.204, and 9.1.2312.111, a low-privileged user that does not hold the "admin" or "power" Splunk roles could craft a search query with an improperly formatted "INGEST_EVAL" parameter as part of a [Field Transformation](https://docs.splunk.com/Documentation/Splunk/latest/Knowledge/Managefieldtransforms) which could crash the Splunk daemon (splunkd).

Affected products

Splunk Enterprise: from 9.1.0 before 9.1.6; from 9.2.0 before 9.2.3; 9.3.0 — fixed in 9.1.6, 9.2.3
Splunk Cloud Platform: from 9.1.2312 before 9.1.2312.111; from 9.1.2312.200 before 9.1.2312.204; from 9.2.2403.100 before 9.2.2403.107 — fixed in 9.1.2312.111, 9.1.2312.204, 9.2.2403.107

How to fix

Upgrade to a fixed version: Splunk Enterprise 9.1.6, 9.2.3; Splunk Cloud Platform 9.1.2312.111, 9.1.2312.204, 9.2.2403.107. Check the vendor advisory for mitigations.

References

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