CVE-2026-77931 jxxghp CVE debrief

Who should care

Defenders responsible for MoviePilot deployments, security teams, and incident response teams should assess exposure and prioritize verification of security controls. They should also review and update incident response plans, and monitor for potential exploitation attempts.

Why it matters

The CVE-2026-77931 command injection vulnerability in MoviePilot 3.1.5 allows attackers to execute arbitrary OS commands, which can lead to potential remote code execution on the host. Defenders should prioritize verifying exposure, assessing security controls, and updating incident response plans.

• Potential remote code execution on the host
• Bypassing of the validate_command_safety denylist
• Exploitation of the admin session's is_admin context
• Verification of security controls and incident response plans

Technical summary

The MoviePilot 3.1.5 command injection vulnerability allows attackers to execute arbitrary OS commands by embedding malicious instructions in untrusted content processed through tools like browse_webpage, search_web, and torrent metadata parsers. This vulnerability can lead to potential remote code execution on the host and bypassing of the validate_command_safety denylist. The vulnerability is caused by the unrestricted ExecuteCommandTool via asyncio.create_subprocess_shell. Attackers can craft content that instructs the model to invoke execute_command with confirm_dangerous set to true, exploiting the admin session's is_admin context.

Defensive priority

Defenders should prioritize verifying exposure of MoviePilot 3.1.5 and assessing the effectiveness of current security controls.

Recommended defensive actions

• Verify exposure of MoviePilot 3.1.5 in the environment
• Assess the effectiveness of current security controls
• Monitor for potential exploitation attempts
• Review and update incident response plans
• 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
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and source item provide details on the command injection vulnerability in MoviePilot 3.1.5. However, the corpus does not establish versions beyond 3.1.5, exploitation, impact, or remediation, which require verification from the supplied official sources.

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.