CVE-2026-122009

Deferred Deferred - Pending Action

Server-Side Request Forgery in DataLinkDC Dinky

Publication date: 2026-11-04

Last updated on: 2026-11-04

Assigner: VulDB

Description

A flaw has been found in DataLinkDC Dinky up to 1.2.5. This vulnerability affects the function FlinkWebURITemplateProxyServlet.getNewTargetUri of the file dinky-admin/src/main/java/org/dinky/utils/FlinkWebURITemplateProxyServlet.java of the component flink_web Proxy Endpoint. This manipulation of the argument _authority causes server-side request forgery. The attack can be initiated remotely. The exploit has been published and may be used. The researcher claims to have submitted a GHSA on the repository of the project.

CVSS Scores

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Meta Information

Published

2026-11-04

Last Modified

2026-11-04

Generated

2026-11-05

AI Q&A

2026-11-05

EPSS Evaluated

N/A

NVD

CVE-2026-122009

EUVD

EUVD-2026-117077

Affected Vendors & Products

Vendor	Product	Version / Range
DataLinkDC	Dinky	1.2.0
DataLinkDC	Dinky	1.2.1
DataLinkDC	Dinky	1.2.2
DataLinkDC	Dinky	1.2.3
DataLinkDC	Dinky	1.2.4
DataLinkDC	Dinky	1.2.5

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

This vulnerability is a server-side request forgery (SSRF) flaw in DataLinkDC Dinky up to version 1.2.5. It exists in the FlinkWebURITemplateProxyServlet.getNewTargetUri function, where manipulating the _authority argument allows an attacker to forge requests to internal systems. The issue arises from improper input validation in the flink_web Proxy Endpoint component.

Detection Guidance

Check for unusual network requests targeting the FlinkWebURITemplateProxyServlet endpoint. Monitor logs for SSRF attempts in Dinky versions up to 1.2.5. Inspect HTTP requests with suspicious _authority parameters.

Impact Analysis

An attacker could exploit this to send crafted requests to internal services, potentially accessing sensitive data or internal networks. This could lead to unauthorized data exfiltration, internal service manipulation, or further network compromise. The exploit is remotely initiable and has been publicly disclosed.

Compliance Impact

This SSRF vulnerability could lead to unauthorized data access or exfiltration, violating GDPR's data protection principles and HIPAA's security requirements for protected health information. Organizations using affected Dinky versions may face compliance violations, legal penalties, and reputational damage if exploited.

Mitigation Strategies

Upgrade Dinky to version 1.3.0 or later. Disable the vulnerable FlinkWebURITemplateProxyServlet if not needed. Implement network-level restrictions to block unauthorized SSRF requests.

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