PatchSiren cyber security CVE debrief
CVE-2026-58195 ruvnet CVE debrief
The CVE record for CVE-2026-58195 was published on 2026-07-17T19:17:17.410Z and has not been modified since then. The NVD entry is currently 8.8 HIGH. This AI-assisted PatchSiren debrief provides an overview of the vulnerability in Agentic-Flow MCP server tools. The vulnerability allows arbitrary OS command execution with the privileges of the MCP server user due to improper interpolation of attacker-influenceable tool parameters. Users should review and update their deployments to version 2.0.14 or later.
- Vendor
- ruvnet
- Product
- agentic-flow
- CVSS
- HIGH 8.8
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-07-17
- Original CVE updated
- 2026-07-17
- Advisory published
- 2026-07-17
- Advisory updated
- 2026-07-17
Who should care
Users of Agentic-Flow MCP server tools, particularly those using versions prior to 2.0.14, should be aware of this vulnerability and take steps to mitigate it. This includes reviewing and updating their deployments, implementing compensating controls, and conducting regular security audits.
Technical summary
Agentic-Flow MCP server tools in multiple files interpolated attacker-influenceable tool parameters directly into shell command strings passed to execSync(), allowing arbitrary OS command execution with the privileges of the MCP server user. This issue is fixed in version 2.0.14. Affected users should update their deployments to prevent potential exploitation. The vulnerability allows for OS command execution due to improper input validation and sanitization of user-influenceable parameters. Users of Agentic-Flow MCP server tools, particularly those using versions prior to 2.0.14, are advised to review and update their deployments. Evidence is based on official CVE and NVD records, as well as source references from [email protected]. Further verification is recommended to ensure accurate affected scope and severity.
Defensive priority
High priority due to CVSS score of 8.8 and potential for arbitrary OS command execution.
Recommended defensive actions
- Inventory and update Agentic-Flow MCP server tools to version 2.0.14 or later
- Implement compensating controls to monitor and restrict OS command execution
- Conduct regular security audits and vulnerability assessments
- Review and validate affected scope and severity
- Track exceptions and retest remediated assets
- Plan vendor-supported updates or mitigations through normal change control
- Check relevant monitoring, detection, and logs for exposed assets
Evidence notes
Evidence is based on official CVE and NVD records, as well as source references from [email protected]. Limited additional information is available. The CVE record was published on 2026-07-17T19:17:17.410Z and has not been modified since then. The NVD entry is currently 8.8 HIGH. Further verification is recommended to ensure accurate affected scope and severity.
Official resources
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-17T19:17:17.410Z and has not been modified since then. The NVD entry is currently 8.8 HIGH.