Critical severity9.1NVD Advisory· Published Aug 19, 2026· Updated Aug 24, 2026
CVE-2026-76404
CVE-2026-76404
Description
In Splunk MCP Server app versions below 1.2.1, a user who holds the "admin" Splunk role could execute arbitrary commands on the underlying operating system. The vulnerability is possible because of missing input validation in the app's credential management component, which deserializes stored data without checking whether the content is of the expected type.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1- Range: <1.2.1
Patches
Vulnerability mechanics
References
1- advisory.splunk.com/advisories/SVD-2026-0808nvdVendor Advisory
News mentions
3- ⚡ Weekly Recap: AI-Powered PLC Attacks, GitLab Attacks, Stripe Key Leaks and MoreThe Hacker News · Aug 24, 2026
- Splunk Patches Critical MCP Server RCE and 16 Other Security Flaws Across AI Toolkit, Kafka AppsCyber Security News · Aug 20, 2026
- Splunk: 25 Vulnerabilities Disclosed, Including Critical RCE and Credential ExposuresVypr Intelligence · Aug 19, 2026