{"id":"CVE-2021-38384","aliases":["GHSA-h97f-5258-5593"],"url":"https://o3.security/vulnerability/CVE-2021-38384","summary":"Incorrect Authorization in serverless-offline","details":"Serverless Offline 8.0.0 returns a 403 HTTP status code for a route that has a trailing / character, which might cause a developer to implement incorrect access control, because the actual behavior within the Amazon AWS environment is a 200 HTTP status code (i.e., possibly greater than expected permissions).","published":"2021-08-10T18:15:07.513Z","modified":"2026-07-08T23:57:52.585471Z","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":1,"affectedPackages":[{"ecosystem":"npm","name":"serverless-offline","fixedVersion":null}],"fix":null,"references":[{"type":"EVIDENCE","url":"https://github.com/dherault/serverless-offline/issues/1259"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T23:57:52.585471Z"}}