CVE-2026-16426

Received Received - Intake

IBM Concert Server-Side Request Forgery Vulnerability

Publication date: 2026-09-22

Last updated on: 2026-09-22

Assigner: IBM Corporation

Description

IBM Concert 1.0.0 through 3.0.0 is vulnerable to server-side request forgery (SSRF). This may allow an authenticated attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-22

Last Modified

2026-09-22

Generated

2026-09-23

AI Q&A

2026-09-23

EPSS Evaluated

N/A

NVD

CVE-2026-16426

Affected Vendors & Products

Vendor	Product	Version / Range
ibm	concert	From 1.0.0 (inc) to 3.0.0 (inc)

Helpful Resources

Exploitability

CWE

KEV

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

Executive Summary

IBM Concert versions 1.0.0 through 3.0.0 are vulnerable to server-side request forgery (SSRF). This allows an authenticated attacker to send unauthorized requests from the affected system, which could enable network enumeration or support further attacks.

Impact Analysis

An attacker could exploit this to access internal systems, gather information about your network, or use your server to launch additional attacks. This may lead to data breaches or unauthorized access to sensitive resources.

Compliance Impact

SSRF vulnerabilities can lead to unauthorized data access or exfiltration, violating GDPR's data protection requirements and HIPAA's safeguards for protected health information. Compliance may be compromised if exploited.

Mitigation Strategies

Update IBM Concert to the latest version beyond 3.0.0 to address the SSRF vulnerability. Implement network-level controls to restrict outbound requests from the system. Review and restrict authenticated user permissions to minimize potential impact.

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