{"id":"CVE-2023-37266","aliases":["GHSA-m5q5-8mfw-p2hr","GO-2023-1931"],"url":"https://o3.security/vulnerability/CVE-2023-37266","summary":"Weak json web token (JWT) secrets in CasaOS","details":"### Impact\n\nUnauthenticated attackers can craft arbitrary JWTs and access features that usually require authentication and execute arbitrary commands as `root` on CasaOS instances.\n\n### Patches\n\nThe problem was addressed by improving the validation of JWTs in 705bf1f. This patch is part of CasaOS 0.4.4.\n\n### Workarounds\n\nUsers should upgrade to CasaOS 0.4.4. If they can't, they should temporarily restrict access to CasaOS to untrusted users, for instance by not exposing it publicly.\n\n### References\n\n- 705bf1f\n- https://www.sonarsource.com/blog/security-vulnerabilities-in-casaos/\n","published":"2023-07-17T20:57:43.078Z","modified":"2026-10-28T02:30:34.353916935Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/IceWhaleTech/CasaOS","fixedVersion":"0.4.4"}],"fix":{"url":"https://github.com/IceWhaleTech/CasaOS/commit/705bf1facbffd2ca40b159b0303132b6fdf657ad","label":"IceWhaleTech/CasaOS@705bf1f"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/37xxx/CVE-2023-37266.json"},{"type":"ADVISORY","url":"https://github.com/IceWhaleTech/CasaOS/security/advisories/GHSA-m5q5-8mfw-p2hr"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-37266"},{"type":"FIX","url":"https://github.com/IceWhaleTech/CasaOS/commit/705bf1facbffd2ca40b159b0303132b6fdf657ad"},{"type":"ARTICLE","url":"https://www.sonarsource.com/blog/security-vulnerabilities-in-casaos"},{"type":"PACKAGE","url":"https://github.com/IceWhaleTech/CasaOS"},{"type":"WEB","url":"https://pkg.go.dev/vuln/GO-2023-1931"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-28T02:30:34.353916935Z"}}