CVE-2026-100893
Received Received - Intake

Server-Side Request Forgery in VoceChat Server

Publication date: 2026-09-28

Last updated on: 2026-09-28

Assigner: VulDB

Description
A vulnerability was determined in Privoce VoceChat Server up to 0.5.36. This vulnerability affects the function open_graph::fetch of the file src/api/resource.rs of the component open_graphic_parse Endpoint. Executing a manipulation of the argument url can lead to server-side request forgery. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

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Meta Information

Published
2026-09-28
Last Modified
2026-09-28
Generated
2026-09-28
AI Q&A
2026-09-28
EPSS Evaluated
N/A
NVD
CVE-2026-100893
EUVD
EUVD-2026-88057

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
privoce vocechat_server to 0.5.36 (inc)
privoce vocechat_server to 0.5.20 (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.

Attack-Flow Graph

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Executive Summary

CVE-2026-100893 is a Server-Side Request Forgery (SSRF) vulnerability in VoceChat Server versions up to 0.5.36. It exists in the open_graph::fetch function of src/api/resource.rs where a user-supplied url parameter is passed without validation. This allows attackers to send crafted requests to force the server to make HTTP requests to arbitrary internal or external targets.

Detection Guidance

To detect this SSRF vulnerability in VoceChat Server, monitor network traffic for unusual outbound requests from the server. Check logs for repeated requests to the /api/resource/open_graphic_parse endpoint with external or internal URLs. Use tools like curl to test the endpoint: curl -X POST http://<server>/api/resource/open_graphic_parse -d 'url=http://internal-service' to see if the server makes internal requests.

Impact Analysis

This vulnerability allows unauthenticated attackers to interact with internal services like Redis, MySQL, or Elasticsearch. In cloud environments, it may lead to theft of IAM role credentials, potentially causing full cloud account compromise. Attackers can also perform internal network reconnaissance or access sensitive endpoints like cloud metadata services.

Compliance Impact

This SSRF vulnerability could lead to unauthorized access to internal systems, potentially exposing sensitive data such as user information or system configurations. For GDPR, this may result in unauthorized data processing or breaches. For HIPAA, it could allow access to protected health information if internal services are compromised. The lack of authentication and input validation increases the risk of non-compliance with these regulations.

Mitigation Strategies

Immediately restrict access to the /api/resource/open_graphic_parse endpoint by implementing authentication. Block private IP ranges (127.0.0.0/8, 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16, 169.254.0.0/16) and enforce a URL whitelist. Update to the latest version if available or apply vendor patches. Disable the endpoint if not required.

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