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TI-2026-53405 Aliases CVE-2026-76350GHSA-xjhr-xq5w-qrwr

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

Priority MEDIUM 41CWE-269Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Privilege escalation
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-269.

Summary

In 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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00524 44th percentileScored 2026-11-07
Fix Fixed Splunk Enterprise (Splunk): 10.4.2, 10.2.6, 10.0.9 +1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SplunkSplunk Enterprise10.4 to before 10.4.2; 10.2 to before 10.2.6; 10.0 to before 10.0.9; 9.4 to before 9.4.1410.4.2, 10.2.6, 10.0.9, 9.4.14Patch availableCNA
  • Splunk Enterprise VendorSplunk Affected 10.4 to before 10.4.2; 10.2 to before 10.2.6; 10.0 to before 10.0.9; 9.4 to before 9.4.14 Fixed in 10.4.2, 10.2.6, 10.0.9, 9.4.14 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*9.4.0 to before 9.4.14; 10.0.0 to before 10.0.9; 10.2.0 to before 10.2.6; 10.4.0 to before 10.4.2VulnerableSplunk
  • cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:* Versions 9.4.0 to before 9.4.14; 10.0.0 to before 10.0.9; 10.2.0 to before 10.2.6; 10.4.0 to before 10.4.2 Vulnerable ·Splunk

Remediation

  • Fix · CNA Splunk Enterprise (Splunk) Fixed in 10.4.2, 10.2.6, 10.0.9, 9.4.14

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Splunk Enterprise 10.0.9, 10.2.6 and 2 more versions

    45 records Highest priority Priority MEDIUM 13 MEDIUM, 32 LOW

    Other records, highest priority first

    • TI-2026-53366 Improper Access Control in Embedded Report Dispatch Archives in Splunk EnterprisePriority MEDIUM 49
    • TI-2026-53365 Improper Access Control through Embedded Report REST API Requests in Splunk EnterprisePriority MEDIUM 49
    • TI-2026-53369 Remote Code Execution (RCE) through Splunk Web Manager Configuration in Splunk EnterprisePriority MEDIUM 42
    Show all 45 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-76350
  2. 2026-10-03 Alias added: GHSA-xjhr-xq5w-qrwr

References

Advisory 1

  • TI-2026-16444 Unauthenticated Arbitrary File Creation and Truncation in a PostgreSQL Sidecar Service Endpoint in Splunk Enterprise KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-00154 The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly… KEVCVSS 3.1HIGH 7.5
  • TI-2023-24841 Remote code execution (RCE) in Splunk Enterprise through Insecure XML Parsing CVSS 3.1HIGH 8.8
  • TI-2023-15979 ‘edit_user’ Capability Privilege Escalation CVSS 3.1HIGH 8.8
  • TI-2024-30707 Remote Code Execution (RCE) due to insecure session storage configuration in Splunk Enterprise on Windows CVSS 3.1HIGH 8.8
  • TI-2022-21345 Reflected Cross-Site Scripting via the radio template in Splunk Enterprise CVSS 3.1HIGH 8.8
See all 297 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences