Critical [CVE-2026-76312] Improper Access Control through Embedded Reports in Splunk Enterprise
This critical-severity Splunk advisory covers CVE-2026-76312 affecting Splunk Enterprise.
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Summary
In Splunk Enterprise versions below 10.4.1, 10.2.6, 10.0.9, and 9.4.14, an unauthenticated user who can read the Hypertext Markup Language (HTML) source of a page that embeds a Splunk report could use exposed session material to access all relevant data and affect system integrity.
The vulnerability is possible because the dispatch archive download path does not correctly enforce the embedded-report authorization boundary and includes sensitive session material in archived search-job data. For more information see Additional configuration for embedded reports ( ) and Embed scheduled reports ( ) in the Splunk documentation.
- Splunk Enterprise 10.4 before 10.4.1
- Splunk Enterprise 10.2 before 10.2.6
- Splunk Enterprise 10.0 before 10.0.9
- Splunk Enterprise 9.4 before 9.4.14
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
- 10.4.1
- 10.2.6
- 10.0.9
- 9.4.14
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Mitigation
Upgrade to a fixed release: 10.4.1, 10.2.6, 10.0.9, 9.4.14. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
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