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High 8.8Published Aug 19, 2026

CVE-2026-76316Stored SPL Injection through Deployment Server Broker Registration in Splunk Enterprise

Updated under an hour ago ()

Does this affect you?

It affects Splunk Enterprise and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

In Splunk Enterprise versions below 10.4.1, 10.2.5, 10.0.9, and 9.4.14, an unauthenticated user who can reach the Splunk management port could store a Search Processing Language (SPL) pipeline that runs when an administrator opens the Add Data forwarder workflow. The SPL pipeline could access all relevant data, affect system integrity, and affect availability of the Splunk platform instance. The SPL injection is possible because Deployment Server client identifiers are placed into dispatched searches without neutralizing special characters. Successful exploitation requires an administrator to open the affected Add Data forwarder workflow after the unauthenticated user registers a crafted Deployment Server client identity. For more information see Forward data (https://help.splunk.com/en/splunk-enterprise/get-started/get-data-in/10.2/how-to-get-data-into-your-splunk-deployment/forward-data) and About agent management (https://help.splunk.com/en/splunk-enterprise/administer/update-your-deployment/10.4/agent-management/about-agent-management) in the Splunk documentation.

CVSS
8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-943
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
cisco
NVD analysis
Analyzed
Record last updated
Aug 27, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Splunk Splunk Enterprise
splunk:enterprise (from the name)
from 10.4 before 10.4.1; from 10.2 before 10.2.5; from 10.0 before 10.0.9; from 9.4 before 9.4.14
CNA record
splunk splunk
splunk:splunk
from 9.4.0 before 9.4.14; from 10.0.0 before 10.0.9; from 10.2.0 before 10.2.5; 10.4.0
NVD

References

  • vendor-advisory

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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