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OpenAdvisories
Critical · 9.6 CVE-2026-44211 EUVD-2026-33662GHSA-5c57-rqjx-35g2

Cline Kanban Server has a Cross-Origin WebSocket Hijacking Vulnerability

Published Jun 1, 2026 · Updated Jun 4, 2026 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
cline cline <= 2.13.0 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm cline <= 2.13.0 — GHSA-5c57-rqjx-35g2

References