CVE-2026-16084
Received Received - Intake

Server-Side Request Forgery in Sipeed PicoClaw

Publication date: 2026-07-18

Last updated on: 2026-07-18

Assigner: VulDB

Description
A weakness has been identified in Sipeed PicoClaw up to 0.2.9. This impacts the function web_fetch of the file pkg/tools/integration/web.go. This manipulation causes server-side request forgery. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks. Patch name: c15aac21fe05ee103a470e1104bc891754e83392. To fix this issue, it is recommended to deploy a patch.

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Meta Information

Published
2026-07-18
Last Modified
2026-07-18
Generated
2026-07-18
AI Q&A
2026-07-18
EPSS Evaluated
N/A
NVD
CVE-2026-16084
EUVD
EUVD-2026-45367

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
sipeed picoclaw to 0.2.9 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-918 The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

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Executive Summary

This vulnerability is a Server-Side Request Forgery (SSRF) in Sipeed PicoClaw up to version 0.2.9. It involves the web_fetch function in pkg/tools/integration/web.go. Attackers can bypass SSRF protections by crafting URLs with ISATAP IPv6 literals that embed private or loopback IPv4 addresses, such as http://[2001:db8:1234::5efe:127.0.0.1]:80/canary. This allows unauthorized access to internal or loopback services.

Detection Guidance

To detect this SSRF vulnerability in Sipeed PicoClaw, check if your system is running versions up to 0.2.9. Inspect web_fetch logs for requests to ISATAP IPv6 literals embedding private or loopback IPv4 addresses. Use network monitoring tools to identify outbound requests to internal services from PicoClaw processes.

Impact Analysis

This vulnerability allows attackers to make unauthorized requests to internal or loopback services from the vulnerable system. This could expose sensitive internal assets like admin interfaces or sidecar endpoints. The exploit is publicly available, increasing the risk of attacks.

Compliance Impact

This vulnerability, a Server-Side Request Forgery (SSRF) flaw in Sipeed PicoClaw, could potentially impact compliance with GDPR and HIPAA by enabling unauthorized access to internal systems or sensitive data. SSRF attacks may allow attackers to interact with internal services, potentially exposing personal data (GDPR) or protected health information (HIPAA). The flaw specifically involves bypassing IP restrictions using ISATAP IPv6 literals, which could lead to unauthorized network requests.

Mitigation Strategies

Apply the patch from commit c15aac21fe05ee103a470e1104bc891754e83392. Update PicoClaw to the latest version beyond 0.2.9. Review and restrict access to web_fetch functionality. Monitor network traffic for suspicious outbound requests to internal services.

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