CVE-2026-120320
Deferred Deferred - Pending Action

Deserialization Flaw in MoviePilot Workflow Fork

Publication date: 2026-11-02

Last updated on: 2026-11-02

Assigner: VulDB

Description
A vulnerability was determined in jxxghp MoviePilot up to 3.1.2. This vulnerability affects the function WorkflowExecutor.restore_context of the file app/chain/workflow.py of the component Workflow Fork Endpoint. Executing a manipulation can lead to deserialization. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version 3.1.3 is able to resolve this issue. This patch is called 6034dcc880c13079aeb398dbe32c346ebcd3a6d2. It is recommended to upgrade the affected component.

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Meta Information

Published
2026-11-02
Last Modified
2026-11-02
Generated
2026-11-02
AI Q&A
2026-11-02
EPSS Evaluated
N/A
NVD
CVE-2026-120320

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
jxxghp MoviePilot 3.1.0
jxxghp MoviePilot 3.1.1
jxxghp MoviePilot 3.1.2

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-502 The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
CWE-20 The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Attack-Flow Graph

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Executive Summary

This vulnerability is a deserialization flaw in MoviePilot up to version 3.1.2. It exists in the WorkflowExecutor.restore_context function of app/chain/workflow.py. The issue allows remote attackers to execute arbitrary code via manipulated pickle payloads sent through the /api/v1/workflow/fork endpoint. The attack requires manage permission and can lead to remote code execution with the privileges of the MoviePilot service process.

Detection Guidance

Detecting this vulnerability requires checking for suspicious workflow contexts in the MoviePilot database. Inspect the workflow table for entries with non-JSON 'content' fields, particularly those containing Base64-encoded Pickle data. Look for workflows with paused states that may have been tampered with. Use database queries to filter for malformed or unusually large context fields.

Impact Analysis

If exploited, this vulnerability could allow attackers to run malicious code on your system with the same permissions as the MoviePilot service. This could lead to data theft, credential compromise, or unauthorized access to internal systems. Attackers could exfiltrate sensitive information like API keys or pivot to other systems in your network.

Mitigation Strategies

Upgrade MoviePilot to version 3.1.3 or later immediately. If upgrading is not possible, remove legacy pickle context support by applying the patch from commit 6034dcc880c13079aeb398dbe32c346ebcd3a6d2. Audit all workflows for suspicious 'content' fields and rotate any exposed credentials. Disable the workflow fork endpoint if not needed.

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