CVE-2026-109405

Deferred Deferred - Pending Action

Server-Side Request Forgery in Conductor-OSS

Publication date: 2026-10-13

Last updated on: 2026-10-16

Assigner: VulDB

Description

A security flaw has been discovered in conductor-oss conductor up to 3.33.0-rc10. This affects the function KafkaPublishTask.start of the file kafka/src/main/java/com/netflix/conductor/contribs/tasks/kafka/KafkaPublishTask.java. The manipulation of the argument kafka_request.bootStrapServers results in server-side request forgery. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks.

CVSS Scores

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Meta Information

Published

2026-10-13

Last Modified

2026-10-16

Generated

2026-10-19

AI Q&A

2026-10-13

EPSS Evaluated

2026-10-18

NVD

CVE-2026-109405

EUVD

EUVD-2026-98544

Affected Vendors & Products

Vendor	Product	Version / Range
conductor-oss	conductor	3.33.0-rc10

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 conductor-oss conductor up to version 3.33.0-rc10. It exists in the KafkaPublishTask.start function of the file kafka/src/main/java/com/netflix/conductor/contribs/tasks/kafka/KafkaPublishTask.java. The issue arises when the kafka_request.bootStrapServers argument is manipulated, allowing an attacker to forge server-side requests.

Detection Guidance

This vulnerability involves server-side request forgery in conductor-oss conductor up to version 3.33.0-rc10. To detect it, inspect network traffic for unusual outbound requests from the KafkaPublishTask.start function. Check if the kafka_request.bootStrapServers parameter is being manipulated to redirect requests to unintended servers. Review logs for any unauthorized or unexpected connections to Kafka brokers.

Impact Analysis

This vulnerability can be exploited remotely, meaning attackers can send crafted requests to internal systems without direct access. It may lead to unauthorized access to sensitive data, internal network scanning, or further attacks on connected services. The public availability of an exploit increases the risk of real-world attacks.

Compliance Impact

This vulnerability enables server-side request forgery (SSRF) via manipulated kafka_request.bootStrapServers, allowing remote attackers to send unauthorized requests. Such unauthorized access could lead to data exfiltration or manipulation, violating GDPR's data protection principles and HIPAA's integrity and confidentiality requirements.

Mitigation Strategies

Upgrade conductor-oss conductor to a version beyond 3.33.0-rc10 to address the server-side request forgery flaw in KafkaPublishTask.start. Apply patches immediately as exploit code is publicly available.

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