CVE-2026-8470 Langflow is affected by weaknesses in secret handling and sensitive configuration access

What is CVE-2026-8470?

CVE-2026-8470 is a high-severity vulnerability in Langflow Langflow, published on 5 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

IBM Langflow OSS 1.0.0 through 1.10.3, 1.0.0 through 1.10.3, 1.0.0 through 1.10.3, and 1.0.0 through 1.10.3 use Python's non-cryptographic random module for generating Fernet encryption keys from user secrets under 32 characters. The deterministic Mersenne Twister PRNG produces identical keys for identical seeds, allowing attackers to reproduce encryption keys and decrypt stored API keys and authentication tokens.

Weakness: CWE-327

Which versions are affected by CVE-2026-8470?

It affects 1 product.

Products include Langflow Langflow.

How do I fix CVE-2026-8470?

No fix has been published for CVE-2026-8470 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-8470 being exploited?

There is no known exploitation of CVE-2026-8470 in the wild and no public exploit code.

Other vulnerabilities in Langflow Langflow

• CVE-2026-9198 IBM Langflow Code Injection Exploited Critical 9.8
• CVE-2026-0770 Langflow Inclusion of Functionality from Untrusted Control Sphere Exploited Critical 9.8
• CVE-2025-3248 Langflow Missing Authentication Exploited Critical 9.8
• CVE-2025-34291 Langflow Origin Validation Error Exploited Critical 9.4
• CVE-2026-33017 Langflow Code Injection Exploited Critical 9.3

All Langflow Langflow vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-8jj7-whc4-r6j5.