CVE-2026-76352

Improper Authorization through the REST API in Splunk Enterprise

HIGH
8.8
CVSS Score
Published: August 19, 2026 at 09:34 PM UTC
Updated: August 21, 2026 at 07:26 PM UTC
1 product affected across 1 vendorSplunk

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Severity
HIGH8.8
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, a user who does not hold the "admin" or "power" Splunk roles could create or modify a scripted lookup through generic configuration endpoints and run an installed lookup script with the permissions of the user account running Splunk Enterprise, which could allow for access to all relevant data and affect system integrity and availability. The vulnerability is possible because the generic transforms configuration endpoints do not enforce the capabilities required to create or edit external lookup definitions. For more information see Define roles on the Splunk platform with capabilities (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.2/manage-splunk-platform-users-and-roles/define-roles-on-the-splunk-platform-with-capabilities) and limits.conf (https://help.splunk.com/en/splunk-enterprise/administer/admin-manual/10.4/configuration-file-reference/10.4.2-configuration-file-reference/limits.conf) in the Splunk documentation.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

10.0 ≤ v < 10.0.910.0.0 ≤ v < 10.0.910.2 ≤ v < 10.2.610.2.0 ≤ v < 10.2.610.4 ≤ v < 10.4.210.4.0 ≤ v < 10.4.29.4 ≤ v < 9.4.149.4.0 ≤ v < 9.4.1410.010.210.49.4
Affected range stops below 10.0.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.2.6, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.4.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.4.14, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHcisco
Vector?

Quick Info

StatusANALYZED
CWE
CWE-285

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