CVE-2026-8470

CRITICAL CVSS 3.1: 9.1 EPSS 0.11%
Updated Aug 06, 2026
IBM
Parameter Value
CVSS 9.1 (CRITICAL)
Affected Versions 1.0.0 — 1.11.0
Fixed In 1.11.0
Type CWE-327 (Weak Crypto Algorithm)
Vendor IBM
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Langflow Langflow
cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*
1.0.0 1.11.0