CVE-2026-8470
Received Received - Intake

Remote Code Execution in IBM Langflow OSS

Publication date: 2026-08-05

Last updated on: 2026-08-05

Assigner: IBM Corporation

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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-08-05
Last Modified
2026-08-05
Generated
2026-08-05
AI Q&A
2026-08-05
EPSS Evaluated
N/A
NVD
CVE-2026-8470
EUVD
EUVD-2026-53549

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
ibm langflow_oss From 1.0.0 (inc) to 1.10.3 (inc)
ibm langflow_oss 1.11.0
ibm langflow From 1.0.0 (inc) to 1.10.3 (inc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-327 The product uses a broken or risky cryptographic algorithm or protocol.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

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

Impact Analysis

Attackers could exploit this to decrypt stored API keys and authentication tokens, potentially gaining unauthorized access to sensitive systems or data. The vulnerability allows for key reproduction, compromising encryption protections.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating confidentiality requirements in GDPR and HIPAA. Non-compliance may result in legal penalties or data breach notifications.

Mitigation Strategies

Upgrade IBM Langflow OSS to version 1.11.0 or later to address the vulnerability. Ensure all instances are updated to prevent attackers from reproducing encryption keys and decrypting stored API keys or authentication tokens.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-8470. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart