CVE-2026-76313

Remote Code Execution (RCE) through the REST API in Splunk Enterprise

HIGH
8.8
CVSS Score
Published: August 19, 2026 at 09:34 PM UTC
Updated: August 27, 2026 at 05:20 PM UTC
1 product affected across 1 vendorSplunk

Using Splunk Enterprise by Splunk?

Get instant alerts when new vulnerabilities affect Splunk Enterprise - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH8.8
Exploit prediction
EPSS 0.6%
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 perform Remote Code Execution (RCE) by uploading a malicious knowledge bundle and causing it to be used by distributed search, which can allow for access to all relevant data and affect system integrity and availability. The vulnerability is possible because the Representational State Transfer (REST) API endpoint for knowledge bundle upload does not require the high-privilege capability edit_dist_peer, and distributed search accepts caller-supplied knowledge bundle selections from users who do not hold that capability. For more information see What search heads send to search peers (https://help.splunk.com/en/splunk-enterprise/administer/distributed-search/9.2/knowledge-bundle-replication/what-search-heads-send-to-search-peers), About configuring role-based user access (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/9.0/manage-splunk-platform-users-and-roles/about-configuring-role-based-user-access), Define roles on the Splunk platform with capabilities (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/9.1/manage-splunk-platform-users-and-roles/define-roles-on-the-splunk-platform-with-capabilities), and Using the REST API reference (https://help.splunk.com/en/splunk-enterprise/rest-api-reference/10.4/introduction/using-the-rest-api-reference) 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-284

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card