Cline is an autonomous coding agent as an SDK, IDE extension, or CLI assistant. In versions 2.13.0 and prior, there is a cross-origin WebSocket hijack vulnerability in Cline Kanban servers. At time of publication, there are no publicly available patches.
History

Mon, 01 Jun 2026 19:00:00 +0000

Type Values Removed Values Added
First Time appeared Cline
Cline cline
Vendors & Products Cline
Cline cline

Mon, 01 Jun 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 01 Jun 2026 17:00:00 +0000

Type Values Removed Values Added
Description Cline is an autonomous coding agent as an SDK, IDE extension, or CLI assistant. In versions 2.13.0 and prior, there is a cross-origin WebSocket hijack vulnerability in Cline Kanban servers. At time of publication, there are no publicly available patches.
Title Cline Kanban Server has a Cross-Origin WebSocket Hijacking Vulnerability
Weaknesses CWE-1385
CWE-306
References
Metrics cvssV3_1

{'score': 9.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-06-01T17:45:22.683Z

Reserved: 2026-05-05T15:13:47.571Z

Link: CVE-2026-44211

cve-icon Vulnrichment

Updated: 2026-06-01T17:44:58.723Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-06-01T17:17:07.617

Modified: 2026-06-01T19:16:48.127

Link: CVE-2026-44211

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-01T19:45:20Z