{"id":"CVE-2026-44211","aliases":["GHSA-5c57-rqjx-35g2"],"url":"https://o3.security/vulnerability/CVE-2026-44211","summary":"Cline Kanban Server has a Cross-Origin WebSocket Hijacking Vulnerability","details":"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.","published":"2026-06-01T16:01:55.587Z","modified":"2026-08-07T11:31:29.716426338Z","cvss":{"score":9.6,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"cline","fixedVersion":null}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44211.json"},{"type":"ADVISORY","url":"https://github.com/cline/cline/security/advisories/GHSA-5c57-rqjx-35g2"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44211"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:31:29.716426338Z"}}