{"cve":"CVE-2026-59723","nvd":{"published":"2026-07-08T23:16:56.440","modified":"2026-08-26T16:26:56.703","status":"Analyzed","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","score":8.8},"cwes":["CWE-346"],"references":["https://github.com/cline/cline/commit/d09270940f5746f288cfc4a5039b46a2f4d5d01e","https://github.com/cline/cline/pull/11724","https://github.com/cline/cline/releases/tag/cli-v3.0.30","https://github.com/cline/cline/security/advisories/GHSA-3cj3-hqcr-g934","https://github.com/cline/cline/security/advisories/GHSA-3cj3-hqcr-g934"],"products":["cline:cline"],"source":"nvd","synced_at":"2026-10-19T22:44:02.134301115+00:00"},"epss":{"cve":"CVE-2026-59723","score":0.00249,"percentile":0.1623,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-3cj3-hqcr-g934","url":"https://osv.dev/vulnerability/GHSA-3cj3-hqcr-g934","summary":"Cline: Cross-Origin WebSocket Hijacking in Cline Hub Dashboard (`/browser` endpoint)","modified":"2026-09-24T20:00:05.119187992Z","packages":[{"ecosystem":"npm","name":"cline","purl":"pkg:npm/cline","ranges":["<3.0.30"],"fixed":["3.0.30"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}