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CVE-2026-59723

HIGH
8.8
CVSS 3.1
Description
Cline is an autonomous coding agent as an SDK, IDE extension, or CLI assistant. Prior to 3.0.30, the Cline Hub dashboard server launched by the cline dashboard command accepts WebSocket connections on the /browser endpoint without validating the Origin header, and when ROOM_SECRET is unset for local 127.0.0.1 binds, isAuthorizedBrowserRequest() allows attacker-controlled websites to send desktopCommand frames that read workspace state, mutate MCP and provider settings, and trigger command execution when a provider or model is configured. This issue is fixed in version 3.0.30.

Metadata

CVE ID
CVE-2026-59723
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-07-06 15:34 UTC
Published
2026-07-08 22:25 UTC
Last updated
2026-07-08 22:25 UTC
Primary CWE
CWE-346
CWE-346: Origin Validation Error
Vendor / Product
cline / cline
Sources
cve.org  ·  NVD

Severity & Metrics

8.8 HIGH CVSS 3.1
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Affected products (1)
VendorProductPlatformVersions
cline cline — < 3.0.30
Weakness (CWE)
CWESourceDescription
CWE-346 cna CWE-346: Origin Validation Error
CVSS scores (1)
ScoreSeverityVersionSourceVector
8.8 HIGH 3.1 cna CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
References (4)
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