{"id":"CVE-2026-44211","state":"PUBLISHED","title":"Cline Kanban Server has a Cross-Origin WebSocket Hijacking Vulnerability","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.","publishedAt":"2026-06-01T16:01:55.587Z","updatedAt":"2026-06-04T03:55:45.848Z","severity":{"score":9.6,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["cline cline"],"affected":[{"vendor":"cline","product":"cline","versions":[{"version":"<= 2.13.0","status":"affected"}]}],"references":["https://github.com/cline/cline/security/advisories/GHSA-5c57-rqjx-35g2"],"weaknesses":["CWE-306","CWE-1385"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/44xxx/CVE-2026-44211.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-44211","state":"PUBLISHED","datePublished":"2026-06-01T16:01:55.587Z","dateUpdated":"2026-06-04T03:55:45.848Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-05T15:13:47.571Z"},"containers":{"cna":{"title":"Cline Kanban Server has a Cross-Origin WebSocket Hijacking Vulnerability","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"cline","product":"cline","versions":[{"version":"<= 2.13.0","status":"affected"}]}],"references":[{"url":"https://github.com/cline/cline/security/advisories/GHSA-5c57-rqjx-35g2","name":"https://github.com/cline/cline/security/advisories/GHSA-5c57-rqjx-35g2","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.6,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-306","lang":"en","description":"CWE-306: Missing Authentication for Critical Function","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-1385","lang":"en","description":"CWE-1385: Missing Origin Validation in WebSockets","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-06-01T16:01:55.587Z"},"source":{"advisory":"GHSA-5c57-rqjx-35g2","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/cline/cline/security/advisories/GHSA-5c57-rqjx-35g2","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-03T00:00:00+00:00","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-44211"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-04T03:55:45.848Z"}}]}}}