{"id":"CVE-2026-62283","summary":"Nezha Monitoring: Cross-tenant terminal/file-manager session hijack via WebSocket stream UUID without ownership check","details":"Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. Nezha versions 1.14.13 through 1.14.14 and 2.0.0 through 2.0.9 do not bind stream identifiers created by CreateStream in service/rpc/io_stream.go to their creating user, and `GET /ws/terminal/:id` and `GET /ws/file/:id` only check whether the supplied UUID exists. An authenticated RoleMember who obtains a live stream UUID from logs, browser history, referer data, or telemetry can attach to another user's terminal or file-manager session, read and write target-server files, and execute shell commands. This issue is fixed in version 2.0.10.","aliases":["GHSA-q6xx-5vr8-p898","GO-2026-5821"],"modified":"2026-10-28T02:30:23.749126644Z","published":"2026-08-21T20:21:28.712Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62283.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-639","CWE-862"]},"references":[{"type":"WEB","url":"https://github.com/nezhahq/nezha/releases/tag/v2.0.10"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62283.json"},{"type":"ADVISORY","url":"https://github.com/nezhahq/nezha/security/advisories/GHSA-q6xx-5vr8-p898"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-62283"},{"type":"FIX","url":"https://github.com/nezhahq/nezha/commit/6661d6a7fc1c269f55c7f4e775082ad23fbe0f54"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nezhahq/nezha","events":[{"introduced":"439192b4c852e7227d67be3b19b1401973cf0462"},{"last_affected":"4c4758207d70f92a95bd414ce3175914754dfa4b"},{"introduced":"e61772e85878d2fc85be3e5b2042946aaa0c454f"},{"fixed":"43624792a3ddcf11e8cc5fcd4538fa28cae36fc8"},{"fixed":"6661d6a7fc1c269f55c7f4e775082ad23fbe0f54"}],"database_specific":{"extracted_events":[{"source":"AFFECTED_FIELD","strategy":"StringRangeExpression","range":[{"introduced":"1.14.13"},{"last_affected":"1.14.14"}]},{"range":[{"introduced":"2.0.0"},{"fixed":"2.0.10"}],"source":"AFFECTED_FIELD","strategy":"StringRangeExpression"},{"source":"REFERENCES_COMMIT","range":[{"fixed":"6661d6a7fc1c269f55c7f4e775082ad23fbe0f54"}]},{"range":[{"fixed":"43624792a3ddcf11e8cc5fcd4538fa28cae36fc8"}],"source":"REFERENCES_TAG","original_tag":"v2.0.10"}]}}],"versions":["v1.14.14","v1.14.13"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-62283.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"}]}