CVE-2026-97677

HIGH CVSS 3.1: 8.1 EPSS 0.39%
Updated Nov 10, 2026
Langflow
Parameter Value
CVSS 8.1 (HIGH)
Affected Versions 1.0.0 — 1.12.3
Fixed In 1.12.3
Type CWE-22 (Path Traversal)
Vendor Langflow
Public PoC No

IBM Langflow OSS 1.0.0 through 1.12.2 An authenticated flow author could write attacker-controlled file content into any directory writable by the service account, bypassing the platform's local file access isolation safeguard. Via a crafted on-disk index, the attacker could also read the contents of arbitrary files accessible to the service process — including configuration files, secrets, or database files stored under the application's data directory.

Attack Parameters

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

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
None
No disruption

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Langflow Langflow
cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*
1.0.0 1.12.3