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DataLinkDC Dinky CVE-2026-124558

| EUVDEUVD-2026-119784 MEDIUM
Server-Side Request Forgery (SSRF) (CWE-918)
2026-11-09 VulDB GHSA-9hhv-xrpj-v2gw
5.5
CVSS 4.0 · Vendor: VulDB
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Reach Dinky sql-gateway endpoint
  2. Exploit
    Supply malicious connectAddress value
  3. Execution
    Server issues forged outbound request
  4. Impact
    Access internal/restricted network resource

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V4 - API and Web Service URL allowlisting, SSRF prevention
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Credential Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires reaching the sql-gateway Endpoint and invoking the SqlGateway.onOpen function with a crafted 'connectAddress' argument, which the server then uses to establish a connection - this specific parameter is the injection point. The CVSS vector lists PR:N/UI:N, implying no authentication or user interaction, but the sources do not describe access control on this endpoint, so whether the gateway is exposed unauthenticated in default deployments is unverified. Realistic exploitation is limited to environments where the Dinky sql-gateway endpoint is network-reachable by the attacker (e.g., exposed internal or internet-facing management interface up to version 1.2.5); impact is bounded to low (SSRF typically enabling internal reconnaissance or restricted-resource access rather than direct code execution per VC:L/VI:L/VA:L).

Impact

This is a medium-severity SSRF (CWE-918) in DataLinkDC Dinky's sql-gateway endpoint, reachable remotely. The supplied CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N) indicates a network-reachable flaw requiring no privileges or user interaction, but impact is constrained to low across confidentiality, integrity and availability (VC:L/VI:L/VA:L), yielding 6.9. The E:P (Proof-of-Concept) exploit maturity and the VulDB statement that the exploit was disclosed publicly raise exposure, but there is no CISA KEV listing and no EPSS score in the input, so there is no evidence of active or widespread exploitation - exploitation status is 'publicly disclosed PoC, not confirmed exploited in the wild.' The vuln.today decision label is 'this_month,' consistent with a real-but-not-emergency priority: patch on a normal cycle rather than treat as an immediate incident. Key caveat: PR:N claims the endpoint is unauthenticated, but the sources do not describe the access control around SqlGateway.onOpen, so whether the gateway endpoint is exposed without authentication in default deployments is unverified and should be confirmed against the GHSA advisory.

Exploit ScenarioDerived

A remote attacker sends a request to Dinky's sql-gateway endpoint (the SqlGateway.onOpen handler) with a manipulated 'connectAddress' argument pointing at an internal host or metadata service, causing the server to issue an attacker-controlled outbound request. A public PoC reference exists (it is not verified as working exploit code), lowering the barrier to replication. Because the CVSS vector is AV:N/AC:L/PR:N, the request can be made remotely with low complexity.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet

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AnalysisAIv1 – Nov 09, 2026

Server-side request forgery in DataLinkDC Dinky up to and including 1.2.5 lets remote attackers make the server issue requests to attacker-chosen destinations through the 'connectAddress' argument of SqlGateway.onOpen in the sql-gateway endpoint. The CVSS vector (AV:N/AC:L/PR:N/UI:N) and the assessed conditions show exploitation only requires reaching the sql-gateway endpoint and invoking that function, although the sources do not document access control on the endpoint, so whether it is unauthenticated in default deployments is unverified; scored impact is low (VC:L/VI:L/VA:L), consistent with internal reconnaissance or reaching restricted resources rather than code execution. An exploit disclosure is public according to the reporting sources and CVSS 4.0 exploit maturity is rated P, but the PoC is not independently verified as working exploit code and no active exploitation (CISA KEV) is reported.

RemediationAI

No vendor-released patch is identified in the available sources, and no fixed version number should be assumed; administrators should track GHSA-x4hx-f425-mrx6 at https://github.com/DataLinkDC/dinky/security/advisories/GHSA-x4hx-f425-mrx6 and the vendor project page for a patched release and upgrade as soon as one is published. Until then, the primary control is to remove attacker reachability of the vulnerable surface: restrict network access to the Dinky sql-gateway endpoint so that only trusted administrative networks or hosts can invoke it (firewall rules, security groups or a reverse proxy with authentication in front of the gateway), accepting that legitimate gateway clients outside that allow-list will lose access. Where the sql-gateway functionality is not required, keep the endpoint unreachable or undeployed, with the trade-off that dependent SQL gateway workflows stop functioning. Because the flaw turns the Dinky server into a request originator, egress filtering on the Dinky host or container - denying outbound connections to internal management networks, metadata services and other sensitive address ranges while permitting only the destinations the gateway legitimately needs - limits the value of a successful SSRF, at the cost of possible breakage for valid data sources. Reviewing outbound connection logs from the Dinky server for unexpected destination addresses supports detection in the absence of a patch.

Affected VersionsENISA

dinky 1.2.1
dinky 1.2.2
dinky 1.2.3
dinky 1.2.5
dinky 1.2.4
dinky 1.2.0

Affected Packages

euvd dinky no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Dinky is a Java-based data development platform (tags: Java, SSRF, Dinky), and the affected element is a component referred to as the sql-gateway Endpoint, specifically the SqlGateway.onOpen function in SqlGateway.java. The flaw is CWE-918 (Server-Side Request Forgery): the 'connectAddress' argument supplied to onOpen is used by the server to establish a connection, making that parameter the injection point through which an attacker can direct server-side requests to a destination of their choosing. The CPE entry cpe:2.3:a:datalinkdc:dinky:*:*:*:*:*:*:*:* uses a wildcard version, and the affected range is bounded only by the advisory text (up to 1.2.5). The sources describe the injection point and the resulting SSRF, but they do not state what validation, allow-listing or protocol handling exists on connectAddress before the connection is made, and the trigger beyond invoking onOpen with a crafted connectAddress is not described in the available sources. Exploitation is contingent on network reachability of the sql-gateway endpoint, and the researcher reports having submitted a GHSA (GHSA-x4hx-f425-mrx6) to the project repository.

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Severity by source

Vendor (VulDB) PRIMARY 5.5 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
vuln.today AI 6.5 MEDIUM

Network-reachable SSRF with low complexity and no auth/UI per the supplied vector; impact kept low (C:L/I:L) as SSRF enables limited internal access, not full compromise, A:N.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (VulDB).

CVSS VectorVendor: VulDB

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vulnerable system: Confidentiality
Low
Vulnerable system: Integrity
Low
Vulnerable system: Availability
Low
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

Lifecycle Timeline

1
CVSS changed
Nov 09, 2026 - 03:22 NVD
6.9 (MEDIUM) 5.5 (MEDIUM)

DescriptionCVE.org

A vulnerability has been found in DataLinkDC Dinky up to 1.2.5. The impacted element is the function SqlGateway.onOpen of the file SqlGateway.java of the component sql-gateway Endpoint. Such manipulation of the argument connectAddress leads to server-side request forgery. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The researcher claims to have submitted a GHSA on the repository of the project.

Threat Intelligence Overview

Prevalence
Low
niche open-source Apache Flink data-development platform, industry-specific footprint
Social Media
1
Sightings
Data Quality
5 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS N/A
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

28
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +28
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Server-Side Request Forgery exploits applications that fetch remote resources based on user-supplied URLs.

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