{"cve":"CVE-2023-49799","nvd":{"published":"2023-12-09T00:15:07.393","modified":"2026-06-17T06:36:29.377","status":"Modified","description":"`nuxt-api-party` is an open source module to proxy API requests. nuxt-api-party attempts to check if the user has passed an absolute URL to prevent the aforementioned attack. This has been recently changed to use the regular expression `^https?://`, however this regular expression can be bypassed by an absolute URL with leading whitespace. For example `\\nhttps://whatever.com` which has a leading newline. According to the fetch specification, before a fetch is made the URL is normalized. \"To normalize a byte sequence potentialValue, remove any leading and trailing HTTP whitespace bytes from potentialValue.\". This means the final request will be normalized to `https://whatever.com` bypassing the check and nuxt-api-party will send a request outside of the whitelist. This could allow us to leak credentials or perform Server-Side Request Forgery (SSRF). This vulnerability has been addressed in version 0.22.1. Users are advised to upgrade. Users unable to upgrade should revert to the previous method of detecting absolute URLs.","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:N/A:N","score":7.5},"cwes":["CWE-918"],"references":["https://fetch.spec.whatwg.org/","https://fetch.spec.whatwg.org/#http-whitespace-byte","https://github.com/johannschopplich/nuxt-api-party/blob/777462e1e3af1d9f8938aa33f230cd8cb6e0cc9a/src/runtime/server/handler.ts#L31","https://github.com/johannschopplich/nuxt-api-party/security/advisories/GHSA-3wfp-253j-5jxv","https://infra.spec.whatwg.org/#byte-sequence"],"products":["johannschopplich:nuxt_api_party"],"source":"nvd","synced_at":"2026-10-19T21:42:34.585441961+00:00"},"epss":{"cve":"CVE-2023-49799","score":0.00819,"percentile":0.57207,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-3wfp-253j-5jxv","url":"https://osv.dev/vulnerability/GHSA-3wfp-253j-5jxv","summary":"SSRF & Credentials Leak ","modified":"2026-09-10T03:49:59.222385719Z","packages":[{"ecosystem":"npm","name":"nuxt-api-party","purl":"pkg:npm/nuxt-api-party","ranges":["<0.22.0"],"fixed":["0.22.0"]}]}],"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."]}