Improper Verification of Cryptographic Signature Affecting axonflow package, versions [,6.7.0)
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-PYTHON-AXONFLOW-16635352
- published11 May 2026
- disclosed6 May 2026
- creditUnknown
Introduced: 6 May 2026
New CVE NOT AVAILABLE CWE-345 (opens in a new tab)Common Weakness Enumeration (CWE) is a category system for software weaknesses
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade axonflow to version 6.7.0 or higher.
Overview
axonflow is an AxonFlow Python SDK - Enterprise AI Governance in 3 Lines of Code
Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature due to the lack of exposure of the HMAC-SHA256 signing key in the SDK's typed API, which prevents verification of the X-AxonFlow-Signature header on incoming webhook deliveries. An attacker can impersonate legitimate webhook events by crafting forged payloads if they obtain the webhook URL.