CVE-2026-6543

HIGH 8.8

Authenticated Remote Code Execution Vulnerability in Langflow Code Validation Endpoint

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

IBM Langflow Desktop 1.0.0 through 1.8.4 Langflow allows an attacker to execute arbitrary commands with the privileges of the process running Langflow. This allows reading sensitive environment variables (API keys, DB credentials), modifying files, or launching further attacks on the internal network.

CWE	CWE-94
Vendor	ibm
Product	langflow desktop
Published	Apr 30, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

IBM / Langflow Desktop

1.0.0 ≤ 1.8.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

ibm.com: https://www.ibm.com/support/pages/node/7271092

Credits

Eran Shimony (Palo Alto Networks)