CVE-2026-54149 1Panel-dev CVE debrief

Who should care

Users of MaxKB versions prior to 2.10.0-lts should review and apply the provided patch. This includes operators, platform administrators, vulnerability management teams, and security teams who need to assess the impact of this vulnerability on their systems.

Technical summary

The MaxKB tool import functionality and MCP referencing mode did not consistently validate MCP transport type, allowing an authenticated user to import a .tool file containing stdio transport with malicious commands and trigger the configuration through an AI Chat node, executing arbitrary system commands. This issue is fixed in version 2.10.0-lts. The vulnerability has a CVSS score of 8.8 and is considered HIGH severity.

Defensive priority

High priority due to CVSS score of 8.8 and potential for arbitrary system command execution.

Recommended defensive actions

• Review and apply the provided patch to upgrade to MaxKB version 2.10.0-lts or later.
• Restrict access to the MaxKB tool import functionality and MCP referencing mode to authorized users only.
• Monitor for suspicious activity and implement additional security controls to prevent exploitation.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The CVE record and NVD entry provide details on the vulnerability and patch. Additional information can be found in the source references. The MaxKB tool import functionality and MCP referencing mode did not consistently validate MCP transport type, allowing an authenticated user to import a .tool file containing stdio transport with malicious commands. This issue is fixed in version 2.10.0-lts. Users should review the official advisory and CVE record for affected scope, severity, and vendor guidance.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.