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.

Project Subscriptions

Vendors Products
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-5c57-rqjx-35g2 Cline Kanban Server has a Cross-Origin WebSocket Hijacking Vulnerability
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

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'}


Projects

Sign in to view the affected projects.

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

Weaknesses