CVE-2026-82957

Received Received - Intake

Server-Side Request Forgery in Hyperledger FireFly

Publication date: 2026-08-31

Last updated on: 2026-08-31

Assigner: VulDB

Description

A vulnerability was found in hyperledger-firefly firefly up to 1.4.0. The impacted element is the function ValidateOptions of the file internal/events/webhooks/webhooks.go of the component Webhook Subscription. Performing a manipulation of the argument url results in server-side request forgery. Remote exploitation of the attack is possible. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-08-31

Last Modified

2026-08-31

Generated

2026-09-01

AI Q&A

2026-09-01

EPSS Evaluated

N/A

NVD

CVE-2026-82957

EUVD

EUVD-2026-68910

Affected Vendors & Products

Vendor	Product	Version / Range
hyperledger	firefly	to 1.4.0 (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

This vulnerability is a server-side request forgery (SSRF) in Hyperledger FireFly up to version 1.4.0. It exists in the ValidateOptions function of the webhooks.go file, where manipulating the url argument allows an attacker to forge server-side requests. The exploit is public and remote attacks are possible.

Detection Guidance

This vulnerability involves server-side request forgery (SSRF) in Hyperledger FireFly's webhook subscription function. To detect it, inspect network traffic for unusual outbound requests from the FireFly service, especially to internal or unexpected hosts. Check logs for ValidateOptions function calls with manipulated URL arguments. Use tools like curl or wget to test if the service follows redirects or accesses arbitrary URLs.

Impact Analysis

An attacker could exploit this to send unauthorized requests from your server, potentially accessing internal systems or sensitive data. This could lead to data breaches, unauthorized actions, or further network compromise depending on your environment.

Compliance Impact

This vulnerability could lead to unauthorized data exposure or access, violating GDPR's data protection principles or HIPAA's security requirements. Compliance may be compromised if sensitive data is accessed or exfiltrated due to the SSRF flaw.

Mitigation Strategies

Immediately upgrade Hyperledger FireFly to a version beyond 1.4.0 to address the SSRF vulnerability in the webhook subscription function. If upgrading is not possible, disable webhook subscriptions or restrict access to the ValidateOptions function in internal/events/webhooks/webhooks.go.

Hi! I’m here to help you understand CVE-2026-82957. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70