CVE-2026-44211
Cline Kanban Server has a Cross-Origin WebSocket Hijacking Vulnerability
CVSS Score
9.6
EPSS Score
0.0%
EPSS Percentile
5th
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.
| CWE | CWE-306 CWE-1385 |
| Vendor | cline |
| Product | cline |
| Published | Jun 1, 2026 |
| Last Updated | Jun 4, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
cline / cline
<= 2.13.0