{"id":"CVE-2024-38513","aliases":["GHSA-98j2-3j3p-fw2v","GO-2024-2959"],"url":"https://o3.security/vulnerability/CVE-2024-38513","summary":"Fiber Session Middleware Token Injection Vulnerability","details":"A security vulnerability has been identified in the Fiber session middleware where a user can supply their own session_id value, leading to the creation of a session with that key.\n\n## Impact\nThe identified vulnerability is a session middleware issue in GoFiber versions 2 and above. This vulnerability allows users to supply their own session_id value, resulting in the creation of a session with that key. If a website relies on the mere presence of a session for security purposes, this can lead to significant security risks, including unauthorized access and session fixation attacks. All users utilizing GoFiber's session middleware in the affected versions are impacted.\n\n## Patches\nThe issue has been addressed in the latest patch. Users are strongly encouraged to upgrade to version 2.52.5 or higher to mitigate this vulnerability.\n\n## Workarounds\nUsers who are unable to upgrade immediately can apply the following workarounds to reduce the risk:\n\n1. **Validate Session IDs**: Implement additional validation to ensure session IDs are not supplied by the user and are securely generated by the server.\n2. **Session Management**: Regularly rotate session IDs and enforce strict session expiration policies.\n\n## References\nFor more information on session best practices:\n- [OWASP Session Management Cheat Sheet](https://cheatsheetseries.owasp.org/cheatsheets/Session_Management_Cheat_Sheet.html)\n\nUsers are encouraged to review these references and take immediate action to secure their applications.","published":"2024-07-01T18:31:13.028Z","modified":"2026-10-28T02:30:59.101600873Z","cvss":{"score":10,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},"epss":{"score":0.00692,"percentile":0.51251,"asOf":"2026-09-17"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/gofiber/fiber","fixedVersion":"2.52.5"},{"ecosystem":"Go","name":"github.com/gofiber/fiber/v2","fixedVersion":"2.52.5"},{"ecosystem":"Go","name":"github.com/gofiber/fiber/v2/middleware/session","fixedVersion":"2.52.5"}],"fix":{"url":"https://github.com/gofiber/fiber/commit/66a881441b27322a331f1b526cf1eb6b3358a4d8","label":"gofiber/fiber@66a8814"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/38xxx/CVE-2024-38513.json"},{"type":"ADVISORY","url":"https://github.com/gofiber/fiber/security/advisories/GHSA-98j2-3j3p-fw2v"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-38513"},{"type":"FIX","url":"https://github.com/gofiber/fiber/commit/66a881441b27322a331f1b526cf1eb6b3358a4d8"},{"type":"WEB","url":"https://github.com/gofiber/fiber/commit/7926e5bf4da03e54f62d27d53229d35b264cba8e"},{"type":"PACKAGE","url":"https://github.com/gofiber/fiber"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-28T02:30:59.101600873Z"}}