CVE-2026-4528
Received Received - Intake
Server-Side Request Forgery in trueleaf ApiFlow URL Validation

Publication date: 2026-03-21

Last updated on: 2026-04-29

Assigner: VulDB

Description
A vulnerability was determined in trueleaf ApiFlow 0.9.7. The impacted element is the function validateUrlSecurity of the file packages/server/src/service/proxy/http_proxy.service.ts of the component URL Validation Handler. This manipulation causes server-side request forgery. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized.
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Meta Information
Published
2026-03-21
Last Modified
2026-04-29
Generated
2026-06-16
AI Q&A
2026-03-22
EPSS Evaluated
2026-06-14
NVD
CVE-2026-4528
EUVD
EUVD-2026-14258
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
trueleaf apiflow 0.9.7
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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 exists in trueleaf ApiFlow version 0.9.7, specifically in the function validateUrlSecurity within the URL Validation Handler component. The issue allows an attacker to manipulate the function, causing server-side request forgery (SSRF). This means an attacker can make the server send unauthorized requests to other internal or external systems. The vulnerability can be exploited remotely and has been publicly disclosed.

Impact Analysis

The vulnerability can lead to server-side request forgery, which may allow attackers to access or interact with internal systems that are not normally accessible from the outside. This can result in unauthorized data access, information disclosure, or further attacks on internal services. Because the exploit can be performed remotely without authentication, it poses a significant security risk.

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