CVE-2026-15320 in PicoClaw
Summary
by MITRE • 07/10/2026
A vulnerability was detected in Sipeed PicoClaw up to 0.2.9. This vulnerability affects the function rt.ReloadConfig of the file pkg/channels/pico/pico.go. Performing a manipulation of the argument message.send results in missing authorization. It is possible to initiate the attack remotely. The exploit is now public and may be used. The reported GitHub issue was closed automatically due to inactivity.
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Analysis
by VulDB Data Team • 07/10/2026
The vulnerability in Sipeed PicoClaw version 0.2.9 and earlier represents a critical authorization bypass flaw within the rt.ReloadConfig function located in pkg/channels/pico/pico.go. This security weakness stems from inadequate input validation and authentication checks when processing message.send arguments, creating a pathway for unauthorized manipulation of configuration parameters. The flaw exists at the application layer where legitimate system functions can be exploited through crafted input sequences that bypass normal authorization protocols.
Technical analysis reveals this vulnerability operates as a privilege escalation vector through improper access control mechanisms. The rt.ReloadConfig function fails to properly validate or authenticate the message.send parameter, allowing malicious actors to inject unauthorized commands or configuration changes. This represents a classic case of inadequate input sanitization where user-supplied data flows directly into system functions without proper authorization verification. The vulnerability manifests as a failure in the principle of least privilege, where unauthorized entities can manipulate system configurations through remote access points.
The operational impact of this vulnerability extends beyond simple configuration manipulation to potentially enable full system compromise. Attackers can leverage this flaw to remotely execute unauthorized commands, modify system parameters, or gain elevated privileges within the PicoClaw environment. The public availability of exploitation techniques significantly amplifies the risk, as adversaries no longer require advanced knowledge or custom exploit development to target affected systems. This vulnerability affects the integrity and confidentiality aspects of the system's security posture, potentially allowing persistent unauthorized access.
Mitigation strategies should focus on implementing robust input validation and authentication controls within the rt.ReloadConfig function. Security measures must include parameter sanitization, access control enforcement, and proper authorization verification before processing any configuration changes. The implementation of CWE-284 access control checks and ATT&CK techniques related to privilege escalation should be prioritized. Additionally, network segmentation, firewall rules, and monitoring systems should be deployed to detect and prevent unauthorized remote access attempts. Regular security updates and code reviews are essential to prevent similar vulnerabilities in future releases.
The closure of the associated GitHub issue due to inactivity indicates a potential gap in vulnerability tracking and remediation processes within the project's maintenance cycle. This underscores the importance of continuous security monitoring and proper vulnerability management procedures. Organizations utilizing Sipeed PicoClaw should immediately assess their exposure, implement temporary workarounds if necessary, and monitor for any additional related vulnerabilities that may emerge from similar code patterns within the software ecosystem.