Can you explain this vulnerability to me?

CVE-2026-3750 is a server-side request forgery (SSRF) vulnerability found in ContiNew Admin versions up to 4.2.0, specifically in the Storage Management Module.

The flaw exists in the function URI.create within the file S3ClientFactory.java, where user-supplied endpoint URLs are not properly validated before being used to create HTTP connections.

This lack of validation allows attackers to manipulate the input URLs, causing the server to send unauthorized requests to unintended destinations, including internal network addresses or sensitive cloud metadata services.

The vulnerability can be exploited remotely and requires some authentication, but is considered easy to perform. A proof-of-concept exploit is publicly available.

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How can this vulnerability impact me? :

This SSRF vulnerability can impact the confidentiality, integrity, and availability of your system.

• Attackers can use the vulnerability to make unauthorized requests from the server to internal or external systems.
• It may allow attackers to access sensitive internal resources or cloud metadata services that are normally protected.
• Such unauthorized access can lead to data exposure, manipulation, or disruption of services.

Since the exploit is publicly available and can be performed remotely, the risk of exploitation is significant if the vulnerable component is in use.

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How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:

I don't know

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How can this vulnerability be detected on my network or system? Can you suggest some commands?

[{'type': 'paragraph', 'content': 'This vulnerability involves server-side request forgery (SSRF) through manipulation of S3-compatible object storage endpoint URLs in ContiNew Admin up to version 4.2.0. Detection involves monitoring for unusual or unauthorized HTTP requests originating from the server to internal or sensitive endpoints.'}, {'type': 'paragraph', 'content': 'Since the vulnerability arises from the use of user-supplied URLs passed to the URI.create() method without validation, detection can include checking logs for requests that cause the server to connect to internal IP ranges or cloud metadata service URLs.'}, {'type': 'paragraph', 'content': 'Suggested commands to detect potential exploitation attempts include:'}, {'type': 'list_item', 'content': 'Review web server or application logs for outbound HTTP requests to internal IP addresses (e.g., 169.254.169.254 for AWS metadata) or unusual endpoints.'}, {'type': 'list_item', 'content': 'Use network monitoring tools (e.g., tcpdump, Wireshark) to capture and analyze outbound traffic from the server to detect unexpected connections.'}, {'type': 'list_item', 'content': "Example tcpdump command to monitor outbound HTTP requests: sudo tcpdump -i eth0 'tcp dst port 80 or tcp dst port 443'"}, {'type': 'list_item', 'content': 'Search application logs for usage of the Storage Management Module or calls to S3Client that include suspicious or internal URLs.'}] [1, 2]

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What immediate steps should I take to mitigate this vulnerability?

Immediate mitigation steps for this SSRF vulnerability in ContiNew Admin up to version 4.2.0 include:

• Restrict or disable the ability for administrators to configure arbitrary S3-compatible endpoint URLs until a patch or fix is available.
• Implement network-level controls such as firewall rules or egress filtering to prevent the server from making unauthorized outbound requests to internal IP ranges or sensitive metadata service endpoints.
• Monitor and audit usage of the Storage Management Module for suspicious activity.
• Consider replacing the affected component with an alternative product, as no vendor patch or mitigation has been provided.

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