Improper Privilege Management through PDF Attachments for Email Alert Actions in Splunk Enterprise

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-76350
StatePUBLISHED
Assignercisco
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-19 22:17:19 UTC
Updated2026-08-20 17:19:43 UTC
DescriptionIn Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, a user that holds a role with the schedule_search capability could configure Portable Document Format (PDF) attachments in the email alert action workflow. When the email alert action runs, it could execute arbitrary Search Processing Language (SPL) commands with system-level privileges, expose all relevant data, and affect system integrity and availability on the search head. The vulnerability is possible because the search scheduler passes a system-level authentication context rather than the action owner context to the email alert action when it renders PDF attachments. For more information see alert_actions.conf (https://help.splunk.com/en/splunk-enterprise/administer/admin-manual/10.4/configuration-file-reference/10.4.0-configuration-file-reference/alert_actions.conf) in the Splunk documentation.

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.002820000 probability, percentile 0.207720000 (date 2026-08-20)

Problem Types: CWE-269 | CWE-269 The software does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary8.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNACVSS8.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Splunk Splunk Enterprise affected 10.4 10.4.2 custom Not specified
CNA Splunk Splunk Enterprise affected 10.2 10.2.6 custom Not specified
CNA Splunk Splunk Enterprise affected 10.0 10.0.9 custom Not specified
CNA Splunk Splunk Enterprise affected 9.4 9.4.14 custom Not specified

References

ReferenceSourceLinkTags
advisory.splunk.com/advisories/SVD-2026-0801 [email protected] advisory.splunk.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

Solutions

CNA: Upgrade Splunk Enterprise to versions 10.4.2, 10.2.6, 10.0.9, and 9.4.14, or higher.

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