{"id":"CVE-2023-26114","aliases":["EUVD-2023-1003","GHSA-frjg-g767-7363"],"status":"published","title":"code-server vulnerable to Missing Origin Validation in WebSockets","description":"Versions of the package code-server before 4.10.1 are vulnerable to Missing Origin Validation in WebSockets handshakes. Exploiting this vulnerability can allow an adversary in specific scenarios to access data from and connect to the code-server instance.","severity":{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L/E:P","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.0034,"percentile":0.27771,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-1385","CWE-346"],"published":"2023-03-23T05:00:01Z","modified":"2026-10-28T02:30:25Z","fixes":[{"ecosystem":"npm","package":"code-server","fixed_in":["4.10.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"code-server","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10.1"}]}]},{"source":"osv","ecosystem":"npm","package":"code-server","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"4.10.1"}]}]}],"products":[{"vendor":"coder","product":"code-server"}],"references":[{"url":"https://security.snyk.io/vuln/SNYK-JS-CODESERVER-3368148","tags":["x_transferred","Patch","web"]},{"url":"https://github.com/coder/code-server/commit/d477972c68fc8c8e8d610aa7287db87ba90e55c7","tags":["x_transferred","Patch","fix","web"]},{"url":"https://github.com/coder/code-server/releases/tag/v4.10.1","tags":["x_transferred","Release Notes","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-26114","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-frjg-g767-7363"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/26xxx/CVE-2023-26114.json","tags":["advisory"]},{"url":"https://github.com/coder/code-server","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2023-26114","description":"Versions of the package code-server before 4.10.1 are vulnerable to Missing Origin Validation in WebSockets handshakes. Exploiting this vulnerability can allow an adversary in specific scenarios to access data from and connect to the code-server instance.","status":"published","published":"2023-03-23T05:00:01.22Z","modified":"2025-02-25T19:30:08.466Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L/E:P","level":"high","assessor":"cna"},{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","level":"critical","assessor":"adp"}],"cwes":["CWE-1385","CWE-346"],"updated_at":"2026-11-02T14:35:15.434947Z"}],"euvd":[{"id":"EUVD-2023-1003","description":"Versions of the package code-server before 4.10.1 are vulnerable to Missing Origin Validation in WebSockets handshakes. Exploiting this vulnerability can allow an adversary in specific scenarios to access data from and connect to the code-server instance.","status":"published","published":"2023-03-23T05:00:01Z","modified":"2025-02-25T19:30:08Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L/E:P","level":"high"}],"updated_at":"2026-11-02T20:53:24.103419Z"}],"ghsa":[{"id":"GHSA-frjg-g767-7363","title":"code-server vulnerable to Missing Origin Validation in WebSockets","description":"Versions of the package code-server before 4.10.1 are vulnerable to Missing Origin Validation in WebSockets handshakes. 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Exploiting this vulnerability can allow an adversary in specific scenarios to access data from and connect to the code-server instance.","status":"published","published":"2023-03-23T05:15:16.927Z","modified":"2026-06-17T05:42:42.47Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L","level":"high","assessor":"secondary"},{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","level":"critical","assessor":"primary"},{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","level":"critical","assessor":"secondary"}],"cwes":["CWE-1385","CWE-346"],"updated_at":"2026-11-02T14:07:50.908252Z"}],"osv":[{"id":"CVE-2023-26114","description":"Versions of the package code-server before 4.10.1 are vulnerable to Missing Origin Validation in WebSockets handshakes. Exploiting this vulnerability can allow an adversary in specific scenarios to access data from and connect to the code-server instance.","status":"published","published":"2023-03-23T05:00:01.22Z","modified":"2026-10-28T02:30:25.543757809Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L/E:P","level":"high"}],"cwes":["CWE-1385"],"updated_at":"2026-11-02T15:44:31.135751Z"},{"id":"GHSA-frjg-g767-7363","title":"code-server vulnerable to Missing Origin Validation in WebSockets","description":"Versions of the package code-server before 4.10.1 are vulnerable to Missing Origin Validation in WebSockets handshakes. Exploiting this vulnerability can allow an adversary in specific scenarios to access data from and connect to the code-server instance.","status":"published","published":"2023-03-23T06:30:15Z","modified":"2026-09-10T03:50:08.015124605Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","level":"critical"}],"cwes":["CWE-1385","CWE-346"],"updated_at":"2026-11-02T15:46:46.760785Z"}]}}