Mailgun Secrets Found In AI Logs

Updated: July 31, 2026

Description

Severity: Medium

Mailgun authentication keys were detected in AI logs.

Mailgun secrets refer to API keys or credentials used for authenticating requests to Mailgun's email service. These keys grant access to Mailgun's API and services, and they should be kept confidential to prevent unauthorized access to your email functionality and data.

Example Attack

An attacker discovers a Mailgun API key and uses it to send fraudulent emails impersonating a legitimate business, leading to reputational damage and phishing attacks.

Remediation

Review the logs in question and verify that the transmission of secrets is happening in accordance with your security policies.

Security Frameworks

Secrets and credentials required at runtime must not be exposed within the model's observable context, including the context window, system prompts, or tool call parameters.

AI interactions, safety filtering and policy decisions, and inference telemetry must be logged to a structured, interoperable schema to support audit and incident response.