CVE-2026-59723
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.
Not on KEV
Not in CISA's Known Exploited Vulnerabilities catalogue as of the last daily pull. Absence is not proof of safety.
0%
Chance of exploitation in the next 30 days, 14th percentile of all CVEs. A forecast; KEV outranks it.
8.8
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
—
No exposure census on this CVE's dispatches.
- nvd.nist.gov ↗
- first.org · EPSS ↗
- github.com/cline/cline/commit/d09270940f5746f288cfc4a5039b46a2f4d5d01e ↗
- github.com/cline/cline/pull/11724 ↗
- github.com/cline/cline/releases/tag/cli-v3.0.30 ↗
- github.com/cline/cline/security/advisories/GHSA-3cj3-hqcr-g934 ↗
- github.com/cline/cline/security/advisories/GHSA-3cj3-hqcr-g934 ↗
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