CVE-2026-76278CWE-639

CVE-2026-76278

Medium · published October 8, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
5.0
In the wild
Unconfirmed
What it is

In Splunk Enterprise versions below 10.4.3, 10.2.7, and 10.0.10, a user that holds a role with the edit_spl2_module_permissions capability could use the affected Representational State Transfer (REST) API to access permission grants for SPL2 modules that the user does not have permission to view. The vulnerability is possible because Splunk Enterprise does not verify that the user can read the requested app before the affected REST API returns SPL2 module permission grants. For more information see Module permissions (https://help.splunk.com/en/splunk-enterprise/search/spl2-search-manual/modules-statements-and-views/module-permissions) and Manage SPL2 modules (https://help.splunk.com/en/splunk-enterprise/search/spl2-search-manual/multiple-searches-in-an-spl2-module/manage-spl2-modules) in the Splunk documentation.

Splunk Enterprise versions 9.4.x are not affected.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00162 · 5.0th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-10-08T01:17Z
Affected products (3)
ProductVersionsFixed in
splunk/splunk≥ 10.0.0, < 10.0.1010.0.10
splunk/splunk≥ 10.2.0, < 10.2.710.2.7
splunk/splunk≥ 10.4.0, < 10.4.310.4.3
References (1)
EPSS history
Timeline
  • 09 OCT 03:31Z
    EPSS moved — → 0%
    epss
  • 07 OCT 20:46Z
    Authorization Bypass in SPL2 Module Permissions in Splunk Enterprise
    cvelistv5
  • 07 OCT 20:46Z
    Authorization Bypass in SPL2 Module Permissions in Splunk Enterprise
    cvelistv5