CVE-2026-28467
SSRF Vulnerability in OpenClaw Attachment URL Handling
Publication date: 2026-03-05
Last updated on: 2026-03-09
Assigner: VulnCheck
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| openclaw | openclaw | to 2026.2.2 (exc) |
Helpful Resources
Exploitability
| 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. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in OpenClaw versions prior to 2026.2.2 and is a server-side request forgery (SSRF) issue. It occurs in the attachment and media URL hydration process, allowing remote attackers to make the server fetch arbitrary HTTP or HTTPS URLs.
Attackers who can influence media URLs through features like model-controlled sendAttachment or auto-reply mechanisms can exploit this vulnerability to trigger SSRF. This means they can cause the server to access internal resources and potentially exfiltrate data by embedding the fetched response bytes as outbound attachments.
How can this vulnerability impact me? :
The impact of this vulnerability includes unauthorized access to internal resources that are normally not accessible from outside the network. Attackers can leverage this to gather sensitive information or perform further attacks within the internal network.
Additionally, attackers can exfiltrate data by embedding the fetched response bytes as outbound attachments, potentially leading to data leakage.
The vulnerability has a CVSS v3.1 base score of 5.3, indicating a medium severity, and a CVSS v4.0 base score of 6.9, indicating a higher risk due to its potential impact on integrity and availability.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know