CVE-2026-44211

9.6 CRITICAL

Cline is an autonomous coding agent as an SDK, IDE extension, or CLI assistant

Published: 2026-06-01 · Last updated: 2026-06-03

Severity and scoring

CVSS: 9.6 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CWE: CWE-1385, CWE-306

Affected products

Vendor	Product
cline	cline

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.

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-44211
[Vendor advisory]https://github.com/cline/cline/security/advisories/GHSA-5c57-rqjx-35g2
[Vendor advisory]https://github.com/cline/cline/security/advisories/GHSA-5c57-rqjx-35g2

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