{"cve":"CVE-2021-38384","nvd":{"published":"2021-08-10T18:15:07.513","modified":"2026-06-17T04:01:59.630","status":"Modified","description":"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).","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-755"],"references":["https://github.com/dherault/serverless-offline/issues/1259","https://github.com/dherault/serverless-offline/issues/1259"],"products":["serverless_offline_project:serverless_offline"],"source":"nvd","synced_at":"2026-10-19T21:21:13.713336758+00:00"},"epss":{"cve":"CVE-2021-38384","score":0.0146,"percentile":0.73578,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-h97f-5258-5593","url":"https://osv.dev/vulnerability/GHSA-h97f-5258-5593","summary":"Incorrect Authorization in serverless-offline","modified":"2023-11-08T04:06:27.510404Z","packages":[{"ecosystem":"npm","name":"serverless-offline","purl":"pkg:npm/serverless-offline","ranges":["<=8.0.0"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}