CVE-2026-82957: Hyperledger-Firefly Firefly

High severity, CVSS 7.3. EPSS: 0.5% chance of exploitation in the next 30 days.

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.

Affected products

• Hyperledger-Firefly Firefly: version 1.0 only; version 1.1 only; version 1.2 only; version 1.3 only; version 1.4.0 only

Published 2026-08-31. Last modified 2026-09-01.