CVE-2026-15629 in picobot
Summary
by MITRE • 07/14/2026
A weakness has been identified in louisho5 picobot up to 0.2.0. Impacted is the function CreateSkill/GetSkill of the file internal/agent/tools/filesystem.go of the component Workspace Handler. Executing a manipulation can lead to link following. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
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Analysis
by VulDB Data Team • 07/14/2026
The vulnerability identified in louisho5 picobot version 0.2.0 represents a critical path traversal flaw within the Workspace Handler component, specifically affecting the CreateSkill and GetSkill functions located in internal/agent/tools/filesystem.go. This weakness enables attackers to manipulate file system operations through symbolic link following mechanisms, creating a potential vector for unauthorized access to sensitive system resources. The vulnerability resides in how the application handles file system interactions, particularly when processing skill creation and retrieval requests within the workspace environment.
The technical implementation of this flaw demonstrates a classic path traversal vulnerability that allows adversaries to bypass normal file system access controls by manipulating the symbolic link resolution process during file operations. When the CreateSkill or GetSkill functions execute, they fail to properly validate or sanitize input parameters that influence file system paths, enabling attackers to reference files outside the intended directory structure through carefully crafted symbolic links. This type of vulnerability commonly maps to CWE-22 Path Traversal and is particularly dangerous when combined with remote execution capabilities.
The operational impact of this vulnerability extends beyond simple unauthorized file access, as it provides potential attackers with the ability to escalate privileges and gain deeper system access. Remote exploitation capability means that malicious actors can leverage this weakness from external networks without requiring physical access to the system. The fact that public exploit code exists significantly increases the risk profile, as it reduces the technical barrier for attackers to successfully compromise affected systems. Organizations using picobot versions up to 0.2.0 face potential data exposure, system integrity compromise, and possible lateral movement opportunities through this vulnerability.
Security professionals should consider this vulnerability in relation to ATT&CK framework techniques such as T1059 Command and Scripting Interpreter and T1566 Phishing, as attackers could potentially use the compromised system to execute malicious payloads or harvest sensitive information. The lack of response from the project maintainers despite early issue reporting creates additional risk for users who may continue operating vulnerable systems without proper remediation. Effective mitigation strategies include immediate version updates to patched releases, implementing strict input validation and sanitization measures, applying network segmentation controls, and monitoring for suspicious file system access patterns that could indicate exploitation attempts.
The vulnerability demonstrates the importance of secure coding practices in file system operations and highlights the need for comprehensive security testing throughout the software development lifecycle. Organizations should conduct thorough vulnerability assessments of their picobot deployments and implement proper access controls to limit potential damage from such path traversal exploits. Regular security audits and prompt response to security advisories are essential for maintaining system integrity against known vulnerabilities that remain unpatched in production environments.