Critical severity9.6GHSA Advisory· Published Jun 1, 2026· Updated Jun 3, 2026

CVE-2026-44211

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

Package	Affected versions	Patched versions
clinenpm	<= 2.13.0	—

Affected products

Cline/ClineGHSA2 versions
<= 2.13.0+ 1 more
- (no CPE)range: <= 2.13.0
- cpe:2.3:a:cline:cline:*:*:*:*:*:*:*:*range: <=2.13.0
ghsa-coords
pkg:npm/cline
Range: <= 2.13.0

Patches

Vulnerability mechanics

References

github.com/cline/cline/security/advisories/GHSA-5c57-rqjx-35g2nvdExploitMitigationVendor AdvisoryWEB
github.com/advisories/GHSA-5c57-rqjx-35g2ghsaADVISORY
nvd.nist.gov/vuln/detail/CVE-2026-44211ghsaADVISORY

News mentions

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cvss	0.624
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000