Attack Chain

1. Attacker identifies a manga-image-translator instance running in shared API server mode.
2. Attacker crafts a malicious pickle payload designed to execute arbitrary code on the server.
3. Attacker sends an HTTP POST request to either the /execute/{method_name} or /simple_execute/{method_name} endpoint.
4. The HTTP request body contains the crafted pickle payload.
5. The share.py module’s vulnerable endpoint calls pickle.loads() on the attacker-controlled payload.
6. pickle.loads() deserializes the malicious payload, triggering arbitrary code execution.
7. The attacker gains code execution within the container, running as root.
8. The attacker leverages the compromised container to perform further malicious activities, such as data exfiltration or lateral movement.

Impact

Successful exploitation of CVE-2026-10042 allows a remote attacker to achieve remote code execution on the affected manga-image-translator server. When running in the default Docker deployment as root, this leads to full container compromise. The CVSS v3.1 base score for this vulnerability is 9.8, indicating a critical severity. The lack of information about affected deployments makes it hard to determine the number of victims, but exploitation could lead to data breaches, service disruption, or further attacks originating from the compromised server.

Recommendation

• Deploy the Sigma rule “Detect CVE-2026-10042 Exploitation Attempt via Pickle Deserialization” to your SIEM to detect potential exploitation attempts based on suspicious HTTP POST requests to the vulnerable endpoints.
• Enable webserver logging to monitor HTTP requests and responses to activate the Sigma rule effectively.
• Apply appropriate input validation and sanitization techniques to prevent the deserialization of untrusted data.
• Consider running the manga-image-translator container with a non-root user to reduce the impact of a successful container compromise.