Mitigation Strategies

The primary mitigation is to upgrade OpenClaw to version 2026.3.28 or later, where the vulnerability has been fixed by introducing SSRF protections in the fal provider's image fetch mechanism.

This fix includes implementing a guarded fetch wrapper that blocks requests resolving to private, internal, or special-use IP addresses unless they originate from trusted relay hosts.

Additional immediate steps include:

• Restrict network access to internal metadata services and sensitive internal URLs from the fal relay or any component that performs image fetches.
• Configure and enforce relay policies that allow private network access only for trusted hosts.
• Audit and monitor image download requests to detect and block unauthorized attempts to access internal resources.

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Executive Summary

CVE-2026-34504 is a Server-Side Request Forgery (SSRF) vulnerability in OpenClaw versions before 2026.3.28, specifically in the fal provider's image-generation-provider.ts component.

This vulnerability allows attackers, including malicious or compromised fal relays, to exploit unguarded image download fetches to access internal URLs. By doing so, attackers can retrieve internal service metadata and responses through the image pipeline.

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Compliance Impact

The vulnerability allows attackers to fetch internal URLs and expose internal service metadata and responses through the image pipeline. This could potentially lead to unauthorized access to sensitive internal information.

Such unauthorized access to internal data may impact compliance with standards and regulations like GDPR and HIPAA, which require protection of sensitive and personal data from unauthorized disclosure.

However, the provided information does not explicitly discuss the direct impact on compliance with these regulations.

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Impact Analysis

The vulnerability can allow attackers to fetch internal URLs and expose sensitive internal service metadata and responses.

This exposure could lead to information disclosure about internal infrastructure, which might be leveraged for further attacks or unauthorized access.

However, the impact on confidentiality, integrity, and availability is considered low to limited based on the CVSS v4.0 score and vector.

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Detection Guidance

This vulnerability involves unguarded image download fetches in the fal provider component that allow attackers to fetch internal URLs. Detection can focus on monitoring network traffic for unusual or unauthorized requests to internal or private IP addresses, especially those related to image download operations.

Since the vulnerability exploits SSRF via image fetches, you can look for HTTP requests or logs showing access attempts to internal metadata services such as 169.254.169.254 or other private/internal IP ranges.

Suggested commands to detect potential exploitation attempts include:

• Using network monitoring tools like tcpdump or Wireshark to capture HTTP requests to private IP ranges (e.g., 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16, or link-local 169.254.0.0/16). Example: tcpdump -i any dst net 10.0.0.0/8 or tcpdump -i any dst host 169.254.169.254
• Checking application logs for image download requests that include internal URLs or IP addresses.
• Reviewing the fal provider's fetch calls or network requests in logs or tracing systems to identify unguarded fetches to internal services.

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