# Duplicate Advisory: Langflow: Weak Fernet Key via random.seed()

Source: https://junglewise.ai/threats/duplicate-advisory-langflow-weak-fernet-key-via-random-seed-f6da180f  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-05  
License: CC BY 4.0 with a link back

Severity: high · CVSS 7.4 · Published 2026-08-05

## Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-jxw3-mjmx-3pqm. This link is maintained to preserve external references.

## Original Description
IBM Langflow OSS contains a weak cryptographic key derivation vulnerability in the ensure_fernet_key() function.

Technologies: [langflow (PyPI)](https://junglewise.ai/threats/technologies/pypi-langflow). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is This vulnerability exploited in the wild?** No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.

**How severe is This vulnerability?** High severity, with a CVSS score of 7.4, published 5 August 2026.

**Which products and versions are affected?** langflow (PyPI) <= 1.10.0.

**Is there a fix for This vulnerability?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected?** Check whether you run langflow (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- langflow (PyPI) <= 1.10.0

## Related threats

- [Langflow SSRF in URL-taking components](https://junglewise.ai/threats/langflow-ssrf-in-url-taking-components-protection-disabled-by-default-db7cac37)
- [Langflow IP spoofing in MCP configuration installation](https://junglewise.ai/threats/cve-2026-105741-langflow-is-a-tool-for-building-and-deploying-ai-powered-agents)
- [Langflow path traversal and cross-user disclosure in MCP resources](https://junglewise.ai/threats/cve-2026-105699-langflow-is-a-tool-for-building-and-deploying-ai-powered-agents)
- [Langflow authorization bypass in flow API endpoints](https://junglewise.ai/threats/cve-2026-105698-langflow-is-a-tool-for-building-and-deploying-ai-powered-agents)
- [Langflow MCP stdio command injection](https://junglewise.ai/threats/cve-2026-105697-langflow-is-a-tool-for-building-and-deploying-ai-powered-agents)