Splunk Enterprise and Cloud Platform

CVE-2023-32708: HTTP Response Splitting via the ‘rest’ SPL Command

In Splunk Enterprise versions below 9.0.5, 8.2.11, and 8.1.14, and Splunk Cloud Platform versions below 9.0.2303.100, a low-privileged user can trigger an HTTP response splitting vulnerability with the ‘rest’ SPL command that lets them potentially access other REST endpoints in the system arbitrarily.

Published

ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityHIGHCVSS 3.1 7.2
EPSS0.75%Chance of exploitation in 30 days
Public exploitNot tracked
FixAvailable

Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.

Affected and fixed versions

Product / branchFixed in
Splunk Enterprise 8.18.1.14 or later
Splunk Enterprise 8.28.2.11 or later
Splunk Enterprise 9.09.0.5 or later
Splunk Cloud Platform -9.0.2303.100 or later

Always confirm against the vendor advisory, which lists every fixed hotfix.

What it is

In Splunk Enterprise versions below 9.0.5, 8.2.11, and 8.1.14, and Splunk Cloud Platform versions below 9.0.2303.100, a low-privileged user can trigger an HTTP response splitting vulnerability with the ‘rest’ SPL command that lets them potentially access other REST endpoints in the system arbitrarily.

Sources

KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.

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